1660051616 has 24 divisors (see below), whose sum is σ = 3269185920. Its totient is φ = 829782208.

The previous prime is 1660051577. The next prime is 1660051633. The reversal of 1660051616 is 6161500661.

It is a super-2 number, since 2×1660051616² = 5511542735568422912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159665 + ... + 169743.

It is an arithmetic number, because the mean of its divisors is an integer number (136216080).

Almost surely, 2^1660051616 is an apocalyptic number.

1660051616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1660051616 is a deficient number, since it is larger than the sum of its proper divisors (1609134304).

1660051616 is a wasteful number, since it uses less digits than its factorization.

1660051616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15236 (or 15228 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1660051616 is about 40743.7310024499. The cubic root of 1660051616 is about 1184.0604196706.

The spelling of 1660051616 in words is "one billion, six hundred sixty million, fifty-one thousand, six hundred sixteen".