102156652415554 has 12 divisors (see below), whose sum is σ = 168431836007862. Its totient is φ = 46434842006960.

The previous prime is 102156652415513. The next prime is 102156652415557. The reversal of 102156652415554 is 455514256651201.

It can be written as a sum of positive squares in only one way, i.e., 78870864379329 + 23285788036225 = 8880927^2 + 4825535^2 .

It is a super-2 number, since 2×102156652415554² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102156652415557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 211067463427 + ... + 211067463910.

Almost surely, 2^{102156652415554} is an apocalyptic number.

102156652415554 is a deficient number, since it is larger than the sum of its proper divisors (66275183592308).

102156652415554 is a wasteful number, since it uses less digits than its factorization.

102156652415554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422134927361 (or 422134927350 counting only the distinct ones).

The product of its (nonzero) digits is 7200000, while the sum is 52.

The spelling of 102156652415554 in words is "one hundred two trillion, one hundred fifty-six billion, six hundred fifty-two million, four hundred fifteen thousand, five hundred fifty-four".