20851200352602 has 32 divisors (see below), whose sum is σ = 48350609516160. Its totient is φ = 6648208807680.

The previous prime is 20851200352483. The next prime is 20851200352613. The reversal of 20851200352602 is 20625300215802.

It is a happy number.

20851200352602 is a `hidden beast` number, since 2 + 0 + 8 + 5 + 12 + 0 + 0 + 35 + 2 + 602 = 666.

It is a super-2 number, since 2×20851200352602² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8394201799 + ... + 8394204282.

It is an arithmetic number, because the mean of its divisors is an integer number (1510956547380).

Almost surely, 2^{20851200352602} is an apocalyptic number.

20851200352602 is an abundant number, since it is smaller than the sum of its proper divisors (27499409163558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20851200352602 is a wasteful number, since it uses less digits than its factorization.

20851200352602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16788406115 (or 16788406109 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 20851200352602 in words is "twenty trillion, eight hundred fifty-one billion, two hundred million, three hundred fifty-two thousand, six hundred two".