53237781662 has 16 divisors (see below), whose sum is σ = 86005937472. Its totient is φ = 24569442720.

The previous prime is 53237781647. The next prime is 53237781679. The reversal of 53237781662 is 26618773235.

It is a super-2 number, since 2×53237781662² (a number of 22 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 53237781662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314612 + ... + 453272.

It is an arithmetic number, because the mean of its divisors is an integer number (5375371092).

Almost surely, 2^53237781662 is an apocalyptic number.

53237781662 is a deficient number, since it is larger than the sum of its proper divisors (32768155810).

53237781662 is a wasteful number, since it uses less digits than its factorization.

53237781662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153443.

The product of its digits is 2540160, while the sum is 50.

The spelling of 53237781662 in words is "fifty-three billion, two hundred thirty-seven million, seven hundred eighty-one thousand, six hundred sixty-two".