10021501157 has 4 divisors (see below), whose sum is σ = 10037850060. Its totient is φ = 10005152256.

The previous prime is 10021501129. The next prime is 10021501159. The reversal of 10021501157 is 75110512001.

10021501157 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75110512001 = 7 ⋅10730073143.

It can be written as a sum of positive squares in 2 ways, for example, as 1150498561 + 8871002596 = 33919^2 + 94186^2 .

It is a cyclic number.

It is not a de Polignac number, because 10021501157 - 2²⁰ = 10020452581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021501159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8173532 + ... + 8174757.

It is an arithmetic number, because the mean of its divisors is an integer number (2509462515).

Almost surely, 2^10021501157 is an apocalyptic number.

It is an amenable number.

10021501157 is a deficient number, since it is larger than the sum of its proper divisors (16348903).

10021501157 is an equidigital number, since it uses as much as digits as its factorization.

10021501157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16348902.

The product of its (nonzero) digits is 350, while the sum is 23.

The spelling of 10021501157 in words is "ten billion, twenty-one million, five hundred one thousand, one hundred fifty-seven".