1125516564939 has 24 divisors (see below), whose sum is σ = 1637801582592. Its totient is φ = 687171794400.

The previous prime is 1125516564877. The next prime is 1125516564989. The reversal of 1125516564939 is 9394656155211.

It is not a de Polignac number, because 1125516564939 - 2²¹ = 1125514467787 is a prime.

It is a super-4 number, since 4×1125516564939⁴ (a number of 49 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1125516564989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8675587 + ... + 8804364.

It is an arithmetic number, because the mean of its divisors is an integer number (68241732608).

Almost surely, 2^{1125516564939} is an apocalyptic number.

1125516564939 is a deficient number, since it is larger than the sum of its proper divisors (512285017653).

1125516564939 is a wasteful number, since it uses less digits than its factorization.

1125516564939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17480107 (or 17480094 counting only the distinct ones).

The product of its digits is 8748000, while the sum is 57.

The spelling of 1125516564939 in words is "one trillion, one hundred twenty-five billion, five hundred sixteen million, five hundred sixty-four thousand, nine hundred thirty-nine".