1655212896 has 72 divisors (see below), whose sum is σ = 4795867440. Its totient is φ = 541322496.

The previous prime is 1655212879. The next prime is 1655212901. The reversal of 1655212896 is 6982125561.

1655212896 is a `hidden beast` number, since 1 + 6 + 552 + 1 + 2 + 8 + 96 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38956 + ... + 69483.

It is an arithmetic number, because the mean of its divisors is an integer number (66609270).

Almost surely, 2^1655212896 is an apocalyptic number.

1655212896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1655212896 is an abundant number, since it is smaller than the sum of its proper divisors (3140654544).

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

1655212896 is a wasteful number, since it uses less digits than its factorization.

1655212896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108508 (or 108497 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 1655212896 is about 40684.3077365217. The cubic root of 1655212896 is about 1182.9088666233.

The spelling of 1655212896 in words is "one billion, six hundred fifty-five million, two hundred twelve thousand, eight hundred ninety-six".