653166140 has 24 divisors (see below), whose sum is σ = 1496344752. Its totient is φ = 237514880.

The previous prime is 653166079. The next prime is 653166149. The reversal of 653166140 is 41661356.

It is a junction number, because it is equal to n+sod(n) for n = 653166097 and 653166106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653166149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1484249 + ... + 1484688.

It is an arithmetic number, because the mean of its divisors is an integer number (62347698).

Almost surely, 2^653166140 is an apocalyptic number.

It is an amenable number.

653166140 is an abundant number, since it is smaller than the sum of its proper divisors (843178612).

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

653166140 is a wasteful number, since it uses less digits than its factorization.

653166140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2968957 (or 2968955 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 653166140 is about 25557.1152519215. The cubic root of 653166140 is about 867.6433069731.

The spelling of 653166140 in words is "six hundred fifty-three million, one hundred sixty-six thousand, one hundred forty".