20571326760 has 32 divisors (see below), whose sum is σ = 61713980640. Its totient is φ = 5485687104.

The previous prime is 20571326723. The next prime is 20571326791. The reversal of 20571326760 is 6762317502.

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 7 ways as a sum of consecutive naturals, for example, 85713742 + ... + 85713981.

It is an arithmetic number, because the mean of its divisors is an integer number (1928561895).

Almost surely, 2^20571326760 is an apocalyptic number.

20571326760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20571326760 is an abundant number, since it is smaller than the sum of its proper divisors (41142653880).

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

20571326760 is a wasteful number, since it uses less digits than its factorization.

20571326760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171427737 (or 171427733 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 39.

The spelling of 20571326760 in words is "twenty billion, five hundred seventy-one million, three hundred twenty-six thousand, seven hundred sixty".