20345400576396 has 72 divisors (see below), whose sum is σ = 58776130509824. Its totient is φ = 5812919290080.

The previous prime is 20345400576379. The next prime is 20345400576421. The reversal of 20345400576396 is 69367500454302.

20345400576396 is a `hidden beast` number, since 2 + 0 + 3 + 4 + 540 + 0 + 5 + 7 + 6 + 3 + 96 = 666.

It is a super-2 number, since 2×20345400576396² (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 23 ways as a sum of consecutive naturals, for example, 34219941 + ... + 34809411.

Almost surely, 2^{20345400576396} is an apocalyptic number.

It is an amenable number.

20345400576396 is an abundant number, since it is smaller than the sum of its proper divisors (38430729933428).

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

20345400576396 is a wasteful number, since it uses less digits than its factorization.

20345400576396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726451 (or 726446 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 54.

The spelling of 20345400576396 in words is "twenty trillion, three hundred forty-five billion, four hundred million, five hundred seventy-six thousand, three hundred ninety-six".