20116761620254 has 16 divisors (see below), whose sum is σ = 32509479734928. Its totient is φ = 9280895637312.

The previous prime is 20116761620251. The next prime is 20116761620303. The reversal of 20116761620254 is 45202616761102.

It is a super-2 number, since 2×20116761620254² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20116761620254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20116761620251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156750127 + ... + 156878410.

It is an arithmetic number, because the mean of its divisors is an integer number (2031842483433).

Almost surely, 2^{20116761620254} is an apocalyptic number.

20116761620254 is a deficient number, since it is larger than the sum of its proper divisors (12392718114674).

20116761620254 is a wasteful number, since it uses less digits than its factorization.

20116761620254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313631019.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 20116761620254 in words is "twenty trillion, one hundred sixteen billion, seven hundred sixty-one million, six hundred twenty thousand, two hundred fifty-four".