155163642315 has 32 divisors (see below), whose sum is σ = 270856224000. Its totient is φ = 75223873920.

The previous prime is 155163642311. The next prime is 155163642341. The reversal of 155163642315 is 513246361551.

It is a happy number.

It is not a de Polignac number, because 155163642315 - 2² = 155163642311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155163642311) 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, 2039836 + ... + 2114534.

It is an arithmetic number, because the mean of its divisors is an integer number (8464257000).

Almost surely, 2^155163642315 is an apocalyptic number.

155163642315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155163642315 is a deficient number, since it is larger than the sum of its proper divisors (115692581685).

155163642315 is a wasteful number, since it uses less digits than its factorization.

155163642315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87307.

The product of its digits is 324000, while the sum is 42.

It can be divided in two parts, 1551636 and 42315, that added together give a palindrome (1593951).

The spelling of 155163642315 in words is "one hundred fifty-five billion, one hundred sixty-three million, six hundred forty-two thousand, three hundred fifteen".