155161050500 has 48 divisors (see below), whose sum is σ = 341458685568. Its totient is φ = 61590620000.

The previous prime is 155161050497. The next prime is 155161050503. The reversal of 155161050500 is 5050161551.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (155161050497) and next prime (155161050503).

It is not an unprimeable number, because it can be changed into a prime (155161050503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1118936 + ... + 1249935.

It is an arithmetic number, because the mean of its divisors is an integer number (7113722616).

Almost surely, 2^155161050500 is an apocalyptic number.

155161050500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155161050500 is an abundant number, since it is smaller than the sum of its proper divisors (186297635068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155161050500 is a wasteful number, since it uses less digits than its factorization.

155161050500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2369021 (or 2369009 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 29.

The spelling of 155161050500 in words is "one hundred fifty-five billion, one hundred sixty-one million, fifty thousand, five hundred".