155216064 has 28 divisors (see below), whose sum is σ = 410676344. Its totient is φ = 51738624.

The previous prime is 155216053. The next prime is 155216099. The reversal of 155216064 is 460612551.

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, 404017 + ... + 404400.

Almost surely, 2^155216064 is an apocalyptic number.

It is an amenable number.

155216064 is an abundant number, since it is smaller than the sum of its proper divisors (255460280).

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

155216064 is an equidigital number, since it uses as much as digits as its factorization.

155216064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808432 (or 808422 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 155216064 is about 12458.5739151799. The cubic root of 155216064 is about 537.4180169895.

The spelling of 155216064 in words is "one hundred fifty-five million, two hundred sixteen thousand, sixty-four".