1631077056 has 84 divisors (see below), whose sum is σ = 5343085072. Its totient is φ = 466020864.

The previous prime is 1631077037. The next prime is 1631077069. The reversal of 1631077056 is 6507701361.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1631077056.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198235 + ... + 206298.

Almost surely, 2^1631077056 is an apocalyptic number.

1631077056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1631077056 is an abundant number, since it is smaller than the sum of its proper divisors (3712008016).

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

1631077056 is a wasteful number, since it uses less digits than its factorization.

1631077056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404558 (or 404545 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 1631077056 is about 40386.5950037881. The cubic root of 1631077056 is about 1177.1310789300.

The spelling of 1631077056 in words is "one billion, six hundred thirty-one million, seventy-seven thousand, fifty-six".