155550110400 has 168 divisors, whose sum is σ = 567037921040. Its totient is φ = 41480017920.

The previous prime is 155550110383. The next prime is 155550110431. The reversal of 155550110400 is 4011055551.

155550110400 is a `hidden beast` number, since 1 + 5 + 5 + 550 + 1 + 104 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 1757149 + ... + 1843548.

Almost surely, 2^155550110400 is an apocalyptic number.

155550110400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155550110400 is an abundant number, since it is smaller than the sum of its proper divisors (411487810640).

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

155550110400 is a wasteful number, since it uses less digits than its factorization.

155550110400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3600728 (or 3600707 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

Adding to 155550110400 its reverse (4011055551), we get a palindrome (159561165951).

The spelling of 155550110400 in words is "one hundred fifty-five billion, five hundred fifty million, one hundred ten thousand, four hundred".