86640837723155 has 16 divisors (see below), whose sum is σ = 111989054767104. Its totient is φ = 64160395955040.

The previous prime is 86640837723149. The next prime is 86640837723203. The reversal of 86640837723155 is 55132773804668.

It is not a de Polignac number, because 86640837723155 - 2²⁶ = 86640770614291 is a prime.

It is a super-2 number, since 2×86640837723155² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86640837723091 and 86640837723100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12151586579 + ... + 12151593708.

It is an arithmetic number, because the mean of its divisors is an integer number (6999315922944).

Almost surely, 2^{86640837723155} is an apocalyptic number.

86640837723155 is a deficient number, since it is larger than the sum of its proper divisors (25348217043949).

86640837723155 is a wasteful number, since it uses less digits than its factorization.

86640837723155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24303180346.

The product of its (nonzero) digits is 203212800, while the sum is 65.

The spelling of 86640837723155 in words is "eighty-six trillion, six hundred forty billion, eight hundred thirty-seven million, seven hundred twenty-three thousand, one hundred fifty-five".