155474870400 has 288 divisors, whose sum is σ = 572669061120. Its totient is φ = 40122316800.

The previous prime is 155474870377. The next prime is 155474870479. The reversal of 155474870400 is 4078474551.

It is a tau number, because it is divible by the number of its divisors (288).

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 805729 + ... + 979871.

It is an arithmetic number, because the mean of its divisors is an integer number (1988434240).

Almost surely, 2^155474870400 is an apocalyptic number.

155474870400 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 155474870400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286334530560).

155474870400 is an abundant number, since it is smaller than the sum of its proper divisors (417194190720).

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

155474870400 is a wasteful number, since it uses less digits than its factorization.

155474870400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174204 (or 174184 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 45.

The spelling of 155474870400 in words is "one hundred fifty-five billion, four hundred seventy-four million, eight hundred seventy thousand, four hundred".