20261512533016 has 16 divisors (see below), whose sum is σ = 37995491536200. Its totient is φ = 10129381456704.

The previous prime is 20261512533001. The next prime is 20261512533049. The reversal of 20261512533016 is 61033521516202.

It is a congruent number.

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, 171788590 + ... + 171906493.

Almost surely, 2^{20261512533016} is an apocalyptic number.

It is an amenable number.

20261512533016 is a deficient number, since it is larger than the sum of its proper divisors (17733979003184).

20261512533016 is a wasteful number, since it uses less digits than its factorization.

20261512533016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343702458 (or 343702454 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 20261512533016 in words is "twenty trillion, two hundred sixty-one billion, five hundred twelve million, five hundred thirty-three thousand, sixteen".