155452656 has 20 divisors (see below), whose sum is σ = 401586152. Its totient is φ = 51817536.

The previous prime is 155452637. The next prime is 155452681. The reversal of 155452656 is 656254551.

It is a happy number.

It is a congruent number.

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, 1619251 + ... + 1619346.

Almost surely, 2^155452656 is an apocalyptic number.

155452656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155452656 is an abundant number, since it is smaller than the sum of its proper divisors (246133496).

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

155452656 is a wasteful number, since it uses less digits than its factorization.

155452656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238608 (or 3238602 counting only the distinct ones).

The product of its digits is 180000, while the sum is 39.

The square root of 155452656 is about 12468.0654473739. The cubic root of 155452656 is about 537.6909360237.

The spelling of 155452656 in words is "one hundred fifty-five million, four hundred fifty-two thousand, six hundred fifty-six".