1655667264 has 112 divisors (see below), whose sum is σ = 4663440000. Its totient is φ = 516612096.

The previous prime is 1655667257. The next prime is 1655667269. The reversal of 1655667264 is 4627665561.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1655667269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 648262 + ... + 650810.

Almost surely, 2^1655667264 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 1655667264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2331720000).

1655667264 is an abundant number, since it is smaller than the sum of its proper divisors (3007772736).

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

1655667264 is a wasteful number, since it uses less digits than its factorization.

1655667264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780 (or 2770 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 48.

The square root of 1655667264 is about 40689.8914228092. The cubic root of 1655667264 is about 1183.0170957549.

The spelling of 1655667264 in words is "one billion, six hundred fifty-five million, six hundred sixty-seven thousand, two hundred sixty-four".