21076577160 has 64 divisors (see below), whose sum is σ = 65978858880. Its totient is φ = 5376053760.

The previous prime is 21076577147. The next prime is 21076577201. The reversal of 21076577160 is 6177567012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3815461 + ... + 3820980.

It is an arithmetic number, because the mean of its divisors is an integer number (1030919670).

Almost surely, 2^21076577160 is an apocalyptic number.

21076577160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21076577160 is an abundant number, since it is smaller than the sum of its proper divisors (44902281720).

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

21076577160 is a wasteful number, since it uses less digits than its factorization.

21076577160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7636478 (or 7636474 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 42.

The spelling of 21076577160 in words is "twenty-one billion, seventy-six million, five hundred seventy-seven thousand, one hundred sixty".