1040659691532 has 12 divisors (see below), whose sum is σ = 2428205946936. Its totient is φ = 346886563840.

The previous prime is 1040659691527. The next prime is 1040659691567. The reversal of 1040659691532 is 2351969560401.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43360820469 + ... + 43360820492.

It is an arithmetic number, because the mean of its divisors is an integer number (202350495578).

Almost surely, 2^{1040659691532} is an apocalyptic number.

1040659691532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1040659691532 is an abundant number, since it is smaller than the sum of its proper divisors (1387546255404).

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

1040659691532 is a wasteful number, since it uses less digits than its factorization.

1040659691532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86721640968 (or 86721640966 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 51.

The spelling of 1040659691532 in words is "one trillion, forty billion, six hundred fifty-nine million, six hundred ninety-one thousand, five hundred thirty-two".