155446956 has 72 divisors (see below), whose sum is σ = 452044320. Its totient is φ = 44119296.

The previous prime is 155446937. The next prime is 155447011. The reversal of 155446956 is 659644551.

155446956 is a `hidden beast` number, since 1 + 554 + 4 + 6 + 95 + 6 = 666.

155446956 is nontrivially palindromic in base 13.

It is a super-2 number, since 2×155446956² = 48327512259331872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37600 + ... + 41528.

Almost surely, 2^155446956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155446956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226022160).

155446956 is an abundant number, since it is smaller than the sum of its proper divisors (296597364).

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

155446956 is a wasteful number, since it uses less digits than its factorization.

155446956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103 (or 4098 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 155446956 is about 12467.8368613004. The cubic root of 155446956 is about 537.6843640854.

It can be divided in two parts, 15544 and 6956, that added together give a square (22500 = 150²).

The spelling of 155446956 in words is "one hundred fifty-five million, four hundred forty-six thousand, nine hundred fifty-six".