655662072 has 32 divisors (see below), whose sum is σ = 1765244880. Its totient is φ = 201742080.

The previous prime is 655662061. The next prime is 655662107. The reversal of 655662072 is 270266556.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 655662072.

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, 1050429 + ... + 1051052.

Almost surely, 2^655662072 is an apocalyptic number.

It is an amenable number.

655662072 is an abundant number, since it is smaller than the sum of its proper divisors (1109582808).

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

655662072 is a wasteful number, since it uses less digits than its factorization.

655662072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101503 (or 2101499 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 655662072 is about 25605.8991640598. The cubic root of 655662072 is about 868.7470721431.

The spelling of 655662072 in words is "six hundred fifty-five million, six hundred sixty-two thousand, seventy-two".