20077234544157 has 16 divisors (see below), whose sum is σ = 31218246134400. Its totient is φ = 11472705453216.

The previous prime is 20077234544119. The next prime is 20077234544167. The reversal of 20077234544157 is 75144543277002.

It is a happy number.

It is not a de Polignac number, because 20077234544157 - 2⁸ = 20077234543901 is a prime.

It is a super-2 number, since 2×20077234544157² (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 (20077234544167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9755700888 + ... + 9755702945.

It is an arithmetic number, because the mean of its divisors is an integer number (1951140383400).

Almost surely, 2^{20077234544157} is an apocalyptic number.

It is an amenable number.

20077234544157 is a deficient number, since it is larger than the sum of its proper divisors (11141011590243).

20077234544157 is an equidigital number, since it uses as much as digits as its factorization.

20077234544157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19511403857 (or 19511403843 counting only the distinct ones).

The product of its (nonzero) digits is 6585600, while the sum is 51.

The spelling of 20077234544157 in words is "twenty trillion, seventy-seven billion, two hundred thirty-four million, five hundred forty-four thousand, one hundred fifty-seven".