155056124023215 has 64 divisors (see below), whose sum is σ = 259335604177920. Its totient is φ = 78960823603200.

The previous prime is 155056124023127. The next prime is 155056124023247. The reversal of 155056124023215 is 512320421650551.

It is a happy number.

It is not a de Polignac number, because 155056124023215 - 2⁸ = 155056124022959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 821608365 + ... + 821797065.

It is an arithmetic number, because the mean of its divisors is an integer number (4052118815280).

Almost surely, 2^{155056124023215} is an apocalyptic number.

155056124023215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155056124023215 is a deficient number, since it is larger than the sum of its proper divisors (104279480154705).

155056124023215 is a wasteful number, since it uses less digits than its factorization.

155056124023215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192944.

The product of its (nonzero) digits is 360000, while the sum is 42.

Adding to 155056124023215 its reverse (512320421650551), we get a palindrome (667376545673766).

The spelling of 155056124023215 in words is "one hundred fifty-five trillion, fifty-six billion, one hundred twenty-four million, twenty-three thousand, two hundred fifteen".