20514640322 has 24 divisors (see below), whose sum is σ = 33896339568. Its totient is φ = 9304817720.

The previous prime is 20514640283. The next prime is 20514640331. The reversal of 20514640322 is 22304641502.

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, 22253 + ... + 203775.

It is an arithmetic number, because the mean of its divisors is an integer number (1412347482).

Almost surely, 2^20514640322 is an apocalyptic number.

20514640322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20514640322 is a deficient number, since it is larger than the sum of its proper divisors (13381699246).

20514640322 is a wasteful number, since it uses less digits than its factorization.

20514640322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182014 (or 182003 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The spelling of 20514640322 in words is "twenty billion, five hundred fourteen million, six hundred forty thousand, three hundred twenty-two".