155502055051 has 8 divisors (see below), whose sum is σ = 177723617760. Its totient is φ = 133282238208.

The previous prime is 155502055043. The next prime is 155502055069. The reversal of 155502055051 is 150550205551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155502055051 - 2³ = 155502055043 is a prime.

It is a super-2 number, since 2×155502055051² (a number of 23 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 = 155502054998 and 155502055016.

It is not an unprimeable number, because it can be changed into a prime (155502055081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239686 + ... + 607003.

It is an arithmetic number, because the mean of its divisors is an integer number (22215452220).

Almost surely, 2^155502055051 is an apocalyptic number.

155502055051 is a deficient number, since it is larger than the sum of its proper divisors (22221562709).

155502055051 is an equidigital number, since it uses as much as digits as its factorization.

155502055051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872933.

The product of its (nonzero) digits is 31250, while the sum is 34.

The spelling of 155502055051 in words is "one hundred fifty-five billion, five hundred two million, fifty-five thousand, fifty-one".