20146458452 has 24 divisors (see below), whose sum is σ = 35608809600. Its totient is φ = 9972569376.

The previous prime is 20146458439. The next prime is 20146458463. The reversal of 20146458452 is 25485464102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2661449 + ... + 2669007.

It is an arithmetic number, because the mean of its divisors is an integer number (1483700400).

Almost surely, 2^20146458452 is an apocalyptic number.

It is an amenable number.

20146458452 is a deficient number, since it is larger than the sum of its proper divisors (15462351148).

20146458452 is a wasteful number, since it uses less digits than its factorization.

20146458452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14135 (or 14133 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 41.

The spelling of 20146458452 in words is "twenty billion, one hundred forty-six million, four hundred fifty-eight thousand, four hundred fifty-two".