1295137364856 has 128 divisors (see below), whose sum is σ = 3365922470400. Its totient is φ = 414955520000.

The previous prime is 1295137364821. The next prime is 1295137364933. The reversal of 1295137364856 is 6584637315921.

It is a happy number.

It is a super-2 number, since 2×1295137364856² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1295137364856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111846475 + ... + 111858053.

It is an arithmetic number, because the mean of its divisors is an integer number (26296269300).

Almost surely, 2^{1295137364856} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1295137364856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1682961235200).

1295137364856 is an abundant number, since it is smaller than the sum of its proper divisors (2070785105544).

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

1295137364856 is a wasteful number, since it uses less digits than its factorization.

1295137364856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13301 (or 13297 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 60.

The spelling of 1295137364856 in words is "one trillion, two hundred ninety-five billion, one hundred thirty-seven million, three hundred sixty-four thousand, eight hundred fifty-six".