20315635635466 has 16 divisors (see below), whose sum is σ = 32079639823200. Its totient is φ = 9622499707728.

The previous prime is 20315635635419. The next prime is 20315635635509. The reversal of 20315635635466 is 66453653651302.

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, 18804240 + ... + 19855243.

It is an arithmetic number, because the mean of its divisors is an integer number (2004977488950).

Almost surely, 2^{20315635635466} is an apocalyptic number.

20315635635466 is a deficient number, since it is larger than the sum of its proper divisors (11764004187734).

20315635635466 is a wasteful number, since it uses less digits than its factorization.

20315635635466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38673333.

The product of its (nonzero) digits is 34992000, while the sum is 55.

The spelling of 20315635635466 in words is "twenty trillion, three hundred fifteen billion, six hundred thirty-five million, six hundred thirty-five thousand, four hundred sixty-six".