655497696 has 192 divisors, whose sum is σ = 2126476800. Its totient is φ = 176117760.

The previous prime is 655497683. The next prime is 655497707. The reversal of 655497696 is 696794556.

It is a super-2 number, since 2×655497696² = 859354458922616832, which contains 22 as substring.

Its product of digits (12247200) is a multiple of the sum of its prime divisors (1200).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 559191 + ... + 560361.

It is an arithmetic number, because the mean of its divisors is an integer number (11075400).

Almost surely, 2^655497696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655497696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1063238400).

655497696 is an abundant number, since it is smaller than the sum of its proper divisors (1470979104).

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

655497696 is a wasteful number, since it uses less digits than its factorization.

655497696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222 (or 1200 counting only the distinct ones).

The product of its digits is 12247200, while the sum is 57.

The square root of 655497696 is about 25602.6892337504. The cubic root of 655497696 is about 868.6744671076.

The spelling of 655497696 in words is "six hundred fifty-five million, four hundred ninety-seven thousand, six hundred ninety-six".