155557648 has 20 divisors (see below), whose sum is σ = 314497728. Its totient is φ = 74396960.

The previous prime is 155557637. The next prime is 155557681. The reversal of 155557648 is 846755551.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 155557598 and 155557607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210988 + ... + 211723.

Almost surely, 2^155557648 is an apocalyptic number.

It is an amenable number.

155557648 is an abundant number, since it is smaller than the sum of its proper divisors (158940080).

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

155557648 is a wasteful number, since it uses less digits than its factorization.

155557648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422742 (or 422736 counting only the distinct ones).

The product of its digits is 840000, while the sum is 46.

The square root of 155557648 is about 12472.2751733595. The cubic root of 155557648 is about 537.8119600996.

The spelling of 155557648 in words is "one hundred fifty-five million, five hundred fifty-seven thousand, six hundred forty-eight".