20326156364 has 24 divisors (see below), whose sum is σ = 36408657600. Its totient is φ = 9924647936.

The previous prime is 20326156303. The next prime is 20326156381. The reversal of 20326156364 is 46365162302.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35987 + ... + 204810.

It is an arithmetic number, because the mean of its divisors is an integer number (1517027400).

Almost surely, 2^20326156364 is an apocalyptic number.

It is an amenable number.

20326156364 is a deficient number, since it is larger than the sum of its proper divisors (16082501236).

20326156364 is a wasteful number, since it uses less digits than its factorization.

20326156364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241297 (or 241295 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 20326156364 in words is "twenty billion, three hundred twenty-six million, one hundred fifty-six thousand, three hundred sixty-four".