15655348800 has 756 divisors, whose sum is σ = 68934665280. Its totient is φ = 3299512320.

The previous prime is 15655348799. The next prime is 15655348811. The reversal of 15655348800 is 884355651.

15655348800 is a `hidden beast` number, since 1 + 56 + 553 + 48 + 8 + 0 + 0 = 666.

It is a super-2 number, since 2×15655348800² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 17034741 + ... + 17035659.

Almost surely, 2^15655348800 is an apocalyptic number.

15655348800 is a gapful number since it is divisible by the number (10) 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 15655348800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34467332640).

15655348800 is an abundant number, since it is smaller than the sum of its proper divisors (53279316480).

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

15655348800 is a wasteful number, since it uses less digits than its factorization.

15655348800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980 (or 949 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 45.

The spelling of 15655348800 in words is "fifteen billion, six hundred fifty-five million, three hundred forty-eight thousand, eight hundred".