20013731315554 has 8 divisors (see below), whose sum is σ = 31600628393040. Its totient is φ = 9480188517876.

The previous prime is 20013731315533. The next prime is 20013731315563. The reversal of 20013731315554 is 45551313731002.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 263338569904 + ... + 263338569979.

It is an arithmetic number, because the mean of its divisors is an integer number (3950078549130).

Almost surely, 2^{20013731315554} is an apocalyptic number.

20013731315554 is a deficient number, since it is larger than the sum of its proper divisors (11586897077486).

20013731315554 is a wasteful number, since it uses less digits than its factorization.

20013731315554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526677139904.

The product of its (nonzero) digits is 189000, while the sum is 40.

The spelling of 20013731315554 in words is "twenty trillion, thirteen billion, seven hundred thirty-one million, three hundred fifteen thousand, five hundred fifty-four".