1013191656 has 64 divisors (see below), whose sum is σ = 2561328000. Its totient is φ = 333973248.

The previous prime is 1013191637. The next prime is 1013191657. The reversal of 1013191656 is 6561913101.

It is not an unprimeable number, because it can be changed into a prime (1013191657) 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, 1047285 + ... + 1048251.

It is an arithmetic number, because the mean of its divisors is an integer number (40020750).

Almost surely, 2^1013191656 is an apocalyptic number.

It is an amenable number.

1013191656 is an abundant number, since it is smaller than the sum of its proper divisors (1548136344).

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

1013191656 is a wasteful number, since it uses less digits than its factorization.

1013191656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418 (or 1414 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 1013191656 is about 31830.6716234515. The cubic root of 1013191656 is about 1004.3780236047.

The spelling of 1013191656 in words is "one billion, thirteen million, one hundred ninety-one thousand, six hundred fifty-six".