1156001656051 has 16 divisors (see below), whose sum is σ = 1273914210816. Its totient is φ = 1040231500000.

The previous prime is 1156001655983. The next prime is 1156001656079. The reversal of 1156001656051 is 1506561006511.

It is not a de Polignac number, because 1156001656051 - 2¹³ = 1156001647859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1156001656051.

It is not an unprimeable number, because it can be changed into a prime (1156001656091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4143366 + ... + 4413556.

It is an arithmetic number, because the mean of its divisors is an integer number (79619638176).

Almost surely, 2^{1156001656051} is an apocalyptic number.

1156001656051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1156001656051 is a deficient number, since it is larger than the sum of its proper divisors (117912554765).

1156001656051 is a wasteful number, since it uses less digits than its factorization.

1156001656051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274154.

The product of its (nonzero) digits is 27000, while the sum is 37.

The spelling of 1156001656051 in words is "one trillion, one hundred fifty-six billion, one million, six hundred fifty-six thousand, fifty-one".