155287407100 has 72 divisors (see below), whose sum is σ = 385164875648. Its totient is φ = 53234193600.

The previous prime is 155287407097. The next prime is 155287407161. The reversal of 155287407100 is 1704782551.

It is a super-2 number, since 2×155287407100² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 9211279 + ... + 9228121.

Almost surely, 2^155287407100 is an apocalyptic number.

155287407100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155287407100 is an abundant number, since it is smaller than the sum of its proper divisors (229877468548).

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

155287407100 is a wasteful number, since it uses less digits than its factorization.

155287407100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30035 (or 30028 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 40.

The spelling of 155287407100 in words is "one hundred fifty-five billion, two hundred eighty-seven million, four hundred seven thousand, one hundred".