20756164040031 has 32 divisors (see below), whose sum is σ = 32605125649920. Its totient is φ = 11499915838464.

The previous prime is 20756164039987. The next prime is 20756164040057. The reversal of 20756164040031 is 13004046165702.

It is a happy number.

It is not a de Polignac number, because 20756164040031 - 2¹³ = 20756164031839 is a prime.

It is a super-2 number, since 2×20756164040031² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20756164040081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114651690 + ... + 114832583.

It is an arithmetic number, because the mean of its divisors is an integer number (1018910176560).

Almost surely, 2^{20756164040031} is an apocalyptic number.

20756164040031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20756164040031 is a deficient number, since it is larger than the sum of its proper divisors (11848961609889).

20756164040031 is a wasteful number, since it uses less digits than its factorization.

20756164040031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229484415.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 20756164040031 in words is "twenty trillion, seven hundred fifty-six billion, one hundred sixty-four million, forty thousand, thirty-one".