155151115392 has 128 divisors (see below), whose sum is σ = 507224914560. Its totient is φ = 40918966272.

The previous prime is 155151115391. The next prime is 155151115429. The reversal of 155151115392 is 293511151551.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 155151115392.

It is not an unprimeable number, because it can be changed into a prime (155151115391) 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, 2185053 + ... + 2254940.

It is an arithmetic number, because the mean of its divisors is an integer number (3962694645).

Almost surely, 2^155151115392 is an apocalyptic number.

155151115392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155151115392 is an abundant number, since it is smaller than the sum of its proper divisors (352073799168).

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

155151115392 is a wasteful number, since it uses less digits than its factorization.

155151115392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4440030 (or 4440018 counting only the distinct ones).

The product of its digits is 33750, while the sum is 39.

The spelling of 155151115392 in words is "one hundred fifty-five billion, one hundred fifty-one million, one hundred fifteen thousand, three hundred ninety-two".