2151156052206 has 48 divisors (see below), whose sum is σ = 5523956290944. Its totient is φ = 614616013944.

The previous prime is 2151156052147. The next prime is 2151156052211. The reversal of 2151156052206 is 6022506511512.

2151156052206 is a `hidden beast` number, since 2 + 15 + 1 + 15 + 605 + 2 + 20 + 6 = 666.

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, 316157100 + ... + 316163903.

It is an arithmetic number, because the mean of its divisors is an integer number (115082422728).

Almost surely, 2^{2151156052206} is an apocalyptic number.

2151156052206 is an abundant number, since it is smaller than the sum of its proper divisors (3372800238738).

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

2151156052206 is an equidigital number, since it uses as much as digits as its factorization.

2151156052206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632321027 (or 632321015 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 2151156052206 in words is "two trillion, one hundred fifty-one billion, one hundred fifty-six million, fifty-two thousand, two hundred six".