653199544674 has 48 divisors (see below), whose sum is σ = 1462368560640. Its totient is φ = 210500519040.

The previous prime is 653199544667. The next prime is 653199544681. The reversal of 653199544674 is 476445991356.

It is a happy number.

653199544674 is a `hidden beast` number, since 6 + 5 + 3 + 19 + 9 + 544 + 6 + 74 = 666.

It is an interprime number because it is at equal distance from previous prime (653199544667) and next prime (653199544681).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17062 + ... + 1143105.

It is an arithmetic number, because the mean of its divisors is an integer number (30466011680).

Almost surely, 2^653199544674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 653199544674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (731184280320).

653199544674 is an abundant number, since it is smaller than the sum of its proper divisors (809169015966).

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

653199544674 is a wasteful number, since it uses less digits than its factorization.

653199544674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161215 (or 1161212 counting only the distinct ones).

The product of its digits is 97977600, while the sum is 63.

The spelling of 653199544674 in words is "six hundred fifty-three billion, one hundred ninety-nine million, five hundred forty-four thousand, six hundred seventy-four".