155664852 has 96 divisors (see below), whose sum is σ = 446358528. Its totient is φ = 41209344.

The previous prime is 155664841. The next prime is 155664877. The reversal of 155664852 is 258466551.

155664852 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×155664852² = 48463092296363808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

155664852 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94863 + ... + 96489.

It is an arithmetic number, because the mean of its divisors is an integer number (4649568).

Almost surely, 2^155664852 is an apocalyptic number.

155664852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155664852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223179264).

155664852 is an abundant number, since it is smaller than the sum of its proper divisors (290693676).

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

155664852 is a wasteful number, since it uses less digits than its factorization.

155664852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725 (or 1723 counting only the distinct ones).

The product of its digits is 288000, while the sum is 42.

The square root of 155664852 is about 12476.5721253876. The cubic root of 155664852 is about 537.9354777677.

The spelling of 155664852 in words is "one hundred fifty-five million, six hundred sixty-four thousand, eight hundred fifty-two".