20252626616 has 16 divisors (see below), whose sum is σ = 39198632640. Its totient is φ = 9799657920.

The previous prime is 20252626613. The next prime is 20252626633. The reversal of 20252626616 is 61662625202.

It is a super-2 number, since 2×20252626616² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20252626616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20252626613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40831661 + ... + 40832156.

It is an arithmetic number, because the mean of its divisors is an integer number (2449914540).

Almost surely, 2^20252626616 is an apocalyptic number.

It is an amenable number.

20252626616 is a deficient number, since it is larger than the sum of its proper divisors (18946006024).

20252626616 is a wasteful number, since it uses less digits than its factorization.

20252626616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81663854 (or 81663850 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 20252626616 in words is "twenty billion, two hundred fifty-two million, six hundred twenty-six thousand, six hundred sixteen".