2115551020014 has 64 divisors (see below), whose sum is σ = 4710214152000. Its totient is φ = 703835827200.

The previous prime is 2115551020001. The next prime is 2115551020027. The reversal of 2115551020014 is 4100201555112.

It is a happy number.

2115551020014 is a `hidden beast` number, since 2 + 1 + 1 + 555 + 102 + 0 + 0 + 1 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (2115551020001) and next prime (2115551020027).

It is a super-2 number, since 2×2115551020014² (a number of 25 digits) contains 22 as substring.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2115551020014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 252780022 + ... + 252788390.

It is an arithmetic number, because the mean of its divisors is an integer number (73597096125).

Almost surely, 2^{2115551020014} is an apocalyptic number.

2115551020014 is an abundant number, since it is smaller than the sum of its proper divisors (2594663131986).

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

2115551020014 is a wasteful number, since it uses less digits than its factorization.

2115551020014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16770 (or 16764 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

Adding to 2115551020014 its reverse (4100201555112), we get a palindrome (6215752575126).

The spelling of 2115551020014 in words is "two trillion, one hundred fifteen billion, five hundred fifty-one million, twenty thousand, fourteen".