155053642156 has 36 divisors (see below), whose sum is σ = 315796131000. Its totient is φ = 66419726016.

The previous prime is 155053642129. The next prime is 155053642187. The reversal of 155053642156 is 651246350551.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222960 + ... + 599848.

It is an arithmetic number, because the mean of its divisors is an integer number (8772114750).

Almost surely, 2^155053642156 is an apocalyptic number.

It is an amenable number.

155053642156 is an abundant number, since it is smaller than the sum of its proper divisors (160742488844).

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

155053642156 is a wasteful number, since it uses less digits than its factorization.

155053642156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379006 (or 378997 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 155053642156 in words is "one hundred fifty-five billion, fifty-three million, six hundred forty-two thousand, one hundred fifty-six".