20772087354 has 24 divisors (see below), whose sum is σ = 46458003072. Its totient is φ = 6700673160.

The previous prime is 20772087311. The next prime is 20772087389. The reversal of 20772087354 is 45378027702.

20772087354 is a `hidden beast` number, since 20 + 77 + 208 + 7 + 354 = 666.

It is a super-2 number, since 2×20772087354² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18612424 + ... + 18613539.

It is an arithmetic number, because the mean of its divisors is an integer number (1935750128).

Almost surely, 2^20772087354 is an apocalyptic number.

20772087354 is an abundant number, since it is smaller than the sum of its proper divisors (25685915718).

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

20772087354 is a wasteful number, since it uses less digits than its factorization.

20772087354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37226002 (or 37225999 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 45.

The spelling of 20772087354 in words is "twenty billion, seven hundred seventy-two million, eighty-seven thousand, three hundred fifty-four".