53162965840 has 20 divisors (see below), whose sum is σ = 123603895764. Its totient is φ = 21265186304.

The previous prime is 53162965813. The next prime is 53162965841. The reversal of 53162965840 is 4856926135.

It can be written as a sum of positive squares in 2 ways, for example, as 31327584016 + 21835381824 = 176996^2 + 147768^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53162965841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332268457 + ... + 332268616.

Almost surely, 2^53162965840 is an apocalyptic number.

It is an amenable number.

53162965840 is an abundant number, since it is smaller than the sum of its proper divisors (70440929924).

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

53162965840 is a wasteful number, since it uses less digits than its factorization.

53162965840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664537086 (or 664537080 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 53162965840 in words is "fifty-three billion, one hundred sixty-two million, nine hundred sixty-five thousand, eight hundred forty".