1264016538916 has 24 divisors (see below), whose sum is σ = 2288425459320. Its totient is φ = 610182972672.

The previous prime is 1264016538881. The next prime is 1264016538943. The reversal of 1264016538916 is 6198356104621.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 115432780516 + 1148583758400 = 339754^2 + 1071720^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2023320 + ... + 2573296.

It is an arithmetic number, because the mean of its divisors is an integer number (95351060805).

Almost surely, 2^{1264016538916} is an apocalyptic number.

It is an amenable number.

1264016538916 is a deficient number, since it is larger than the sum of its proper divisors (1024408920404).

1264016538916 is a wasteful number, since it uses less digits than its factorization.

1264016538916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569823 (or 569821 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 1264016538916 in words is "one trillion, two hundred sixty-four billion, sixteen million, five hundred thirty-eight thousand, nine hundred sixteen".