20415521266234 has 8 divisors (see below), whose sum is σ = 30623826898368. Its totient is φ = 10207578966780.

The previous prime is 20415521266229. The next prime is 20415521266243. The reversal of 20415521266234 is 43266212551402.

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, 90692652 + ... + 90917479.

It is an arithmetic number, because the mean of its divisors is an integer number (3827978362296).

Almost surely, 2^{20415521266234} is an apocalyptic number.

20415521266234 is a deficient number, since it is larger than the sum of its proper divisors (10208305632134).

20415521266234 is a wasteful number, since it uses less digits than its factorization.

20415521266234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181666340.

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 20415521266234 in words is "twenty trillion, four hundred fifteen billion, five hundred twenty-one million, two hundred sixty-six thousand, two hundred thirty-four".