20083557057 has 8 divisors (see below), whose sum is σ = 26785373376. Its totient is φ = 13385389392.

The previous prime is 20083557037. The next prime is 20083557077. The reversal of 20083557057 is 75075538002.

It is an interprime number because it is at equal distance from previous prime (20083557037) and next prime (20083557077).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20083557057 - 2⁶ = 20083556993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20083557037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 899293 + ... + 921354.

It is an arithmetic number, because the mean of its divisors is an integer number (3348171672).

Almost surely, 2^20083557057 is an apocalyptic number.

It is an amenable number.

20083557057 is a deficient number, since it is larger than the sum of its proper divisors (6701816319).

20083557057 is a wasteful number, since it uses less digits than its factorization.

20083557057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824327.

The product of its (nonzero) digits is 294000, while the sum is 42.

The spelling of 20083557057 in words is "twenty billion, eighty-three million, five hundred fifty-seven thousand, fifty-seven".