20315090694 has 32 divisors (see below), whose sum is σ = 41861979360. Its totient is φ = 6569268992.

The previous prime is 20315090693. The next prime is 20315090723. The reversal of 20315090694 is 49609051302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20315090693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330597 + ... + 387200.

It is an arithmetic number, because the mean of its divisors is an integer number (1308186855).

Almost surely, 2^20315090694 is an apocalyptic number.

20315090694 is an abundant number, since it is smaller than the sum of its proper divisors (21546888666).

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

20315090694 is a wasteful number, since it uses less digits than its factorization.

20315090694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717944.

The product of its (nonzero) digits is 58320, while the sum is 39.

The spelling of 20315090694 in words is "twenty billion, three hundred fifteen million, ninety thousand, six hundred ninety-four".