155024650400 has 72 divisors (see below), whose sum is σ = 391504121820. Its totient is φ = 59871580160.

The previous prime is 155024650357. The next prime is 155024650409. The reversal of 155024650400 is 4056420551.

It can be written as a sum of positive squares in 6 ways, for example, as 112689118864 + 42335531536 = 335692^2 + 205756^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (155024650409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3317849 + ... + 3364248.

Almost surely, 2^155024650400 is an apocalyptic number.

155024650400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155024650400 is an abundant number, since it is smaller than the sum of its proper divisors (236479471420).

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

155024650400 is a wasteful number, since it uses less digits than its factorization.

155024650400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6682146 (or 6682133 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 155024650400 in words is "one hundred fifty-five billion, twenty-four million, six hundred fifty thousand, four hundred".