1129664865928 has 64 divisors (see below), whose sum is σ = 2264995353600. Its totient is φ = 526893649920.

The previous prime is 1129664865911. The next prime is 1129664865929. The reversal of 1129664865928 is 8295684669211.

It is a super-2 number, since 2×1129664865928² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1129664865929) 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, 20484600 + ... + 20539672.

It is an arithmetic number, because the mean of its divisors is an integer number (35390552400).

Almost surely, 2^{1129664865928} is an apocalyptic number.

It is an amenable number.

1129664865928 is an abundant number, since it is smaller than the sum of its proper divisors (1135330487672).

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

1129664865928 is a wasteful number, since it uses less digits than its factorization.

1129664865928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57862 (or 57858 counting only the distinct ones).

The product of its digits is 89579520, while the sum is 67.

The spelling of 1129664865928 in words is "one trillion, one hundred twenty-nine billion, six hundred sixty-four million, eight hundred sixty-five thousand, nine hundred twenty-eight".