2115554508900 has 180 divisors, whose sum is σ = 7837476716608. Its totient is φ = 483555303360.

The previous prime is 2115554508887. The next prime is 2115554508917. The reversal of 2115554508900 is 98054555112.

2115554508900 is a `hidden beast` number, since 2 + 1 + 1 + 5 + 5 + 54 + 508 + 90 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

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 59 ways as a sum of consecutive naturals, for example, 18598984 + ... + 18712383.

Almost surely, 2^{2115554508900} is an apocalyptic number.

2115554508900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2115554508900 is an abundant number, since it is smaller than the sum of its proper divisors (5721922207708).

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

2115554508900 is a wasteful number, since it uses less digits than its factorization.

2115554508900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37311400 (or 37311384 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 45.

The spelling of 2115554508900 in words is "two trillion, one hundred fifteen billion, five hundred fifty-four million, five hundred eight thousand, nine hundred".