2115554012004 has 48 divisors (see below), whose sum is σ = 4972215368960. Its totient is φ = 700053697440.

The previous prime is 2115554011997. The next prime is 2115554012021. The reversal of 2115554012004 is 4002104555112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23325087 + ... + 23415609.

Almost surely, 2^{2115554012004} is an apocalyptic number.

It is an amenable number.

2115554012004 is an abundant number, since it is smaller than the sum of its proper divisors (2856661356956).

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

2115554012004 is a wasteful number, since it uses less digits than its factorization.

2115554012004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104680 (or 104678 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 2115554012004 its reverse (4002104555112), we get a palindrome (6117658567116).

The spelling of 2115554012004 in words is "two trillion, one hundred fifteen billion, five hundred fifty-four million, twelve thousand, four".