20351655031252 has 12 divisors (see below), whose sum is σ = 35615455837696. Its totient is φ = 10175810506200.

The previous prime is 20351655031247. The next prime is 20351655031307. The reversal of 20351655031252 is 25213055615302.

It is a super-2 number, since 2×20351655031252² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1338378 + ... + 6518785.

Almost surely, 2^{20351655031252} is an apocalyptic number.

It is an amenable number.

20351655031252 is a deficient number, since it is larger than the sum of its proper divisors (15263800806444).

20351655031252 is a wasteful number, since it uses less digits than its factorization.

20351655031252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8504718 (or 8504716 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 40.

The spelling of 20351655031252 in words is "twenty trillion, three hundred fifty-one billion, six hundred fifty-five million, thirty-one thousand, two hundred fifty-two".