20157274395396 has 192 divisors, whose sum is σ = 54915374080000. Its totient is φ = 6385762396800.

The previous prime is 20157274395359. The next prime is 20157274395397. The reversal of 20157274395396 is 69359347275102.

20157274395396 is a `hidden beast` number, since 2 + 0 + 1 + 57 + 2 + 7 + 43 + 9 + 539 + 6 = 666.

It is a super-2 number, since 2×20157274395396² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20157274395397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 131241855 + ... + 131395353.

Almost surely, 2^{20157274395396} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20157274395396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27457687040000).

20157274395396 is an abundant number, since it is smaller than the sum of its proper divisors (34758099684604).

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

20157274395396 is a wasteful number, since it uses less digits than its factorization.

20157274395396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154247 (or 154239 counting only the distinct ones).

The product of its (nonzero) digits is 85730400, while the sum is 63.

The spelling of 20157274395396 in words is "twenty trillion, one hundred fifty-seven billion, two hundred seventy-four million, three hundred ninety-five thousand, three hundred ninety-six".