653891516 has 6 divisors (see below), whose sum is σ = 1144310160. Its totient is φ = 326945756.

The previous prime is 653891509. The next prime is 653891543. The reversal of 653891516 is 615198356.

It is a super-2 number, since 2×653891516² = 855148229393556512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81736436 + ... + 81736443.

It is an arithmetic number, because the mean of its divisors is an integer number (190718360).

Almost surely, 2^653891516 is an apocalyptic number.

It is an amenable number.

653891516 is a deficient number, since it is larger than the sum of its proper divisors (490418644).

653891516 is a wasteful number, since it uses less digits than its factorization.

653891516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163472883 (or 163472881 counting only the distinct ones).

The product of its digits is 194400, while the sum is 44.

The square root of 653891516 is about 25571.3025870799. The cubic root of 653891516 is about 867.9643762766.

The spelling of 653891516 in words is "six hundred fifty-three million, eight hundred ninety-one thousand, five hundred sixteen".