1156172060979 has 12 divisors (see below), whose sum is σ = 1798489872816. Its totient is φ = 711490498992.

The previous prime is 1156172060959. The next prime is 1156172060983. The reversal of 1156172060979 is 9790602716511.

1156172060979 is a `hidden beast` number, since 1 + 1 + 5 + 6 + 1 + 7 + 20 + 609 + 7 + 9 = 666.

It is not a de Polignac number, because 1156172060979 - 2¹¹ = 1156172058931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1156172060959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4940906127 + ... + 4940906360.

It is an arithmetic number, because the mean of its divisors is an integer number (149874156068).

Almost surely, 2^{1156172060979} is an apocalyptic number.

1156172060979 is a deficient number, since it is larger than the sum of its proper divisors (642317811837).

1156172060979 is a wasteful number, since it uses less digits than its factorization.

1156172060979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9881812506 (or 9881812503 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 54.

The spelling of 1156172060979 in words is "one trillion, one hundred fifty-six billion, one hundred seventy-two million, sixty thousand, nine hundred seventy-nine".