1656211053 has 32 divisors (see below), whose sum is σ = 2611781632. Its totient is φ = 913550400.

The previous prime is 1656211021. The next prime is 1656211087. The reversal of 1656211053 is 3501126561.

It is not a de Polignac number, because 1656211053 - 2⁵ = 1656211021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1656211053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1656261053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271050 + ... + 277092.

It is an arithmetic number, because the mean of its divisors is an integer number (81618176).

Almost surely, 2^1656211053 is an apocalyptic number.

It is an amenable number.

1656211053 is a deficient number, since it is larger than the sum of its proper divisors (955570579).

1656211053 is a wasteful number, since it uses less digits than its factorization.

1656211053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6505.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1656211053 is about 40696.5729883979. The cubic root of 1656211053 is about 1183.1465986811.

The spelling of 1656211053 in words is "one billion, six hundred fifty-six million, two hundred eleven thousand, fifty-three".