21550344002626 has 8 divisors (see below), whose sum is σ = 32478717502224. Its totient is φ = 10724104835220.

The previous prime is 21550344002609. The next prime is 21550344002749. The reversal of 21550344002626 is 62620044305512.

It is a happy number.

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, 25533582520 + ... + 25533583363.

It is an arithmetic number, because the mean of its divisors is an integer number (4059839687778).

Almost surely, 2^{21550344002626} is an apocalyptic number.

21550344002626 is a deficient number, since it is larger than the sum of its proper divisors (10928373499598).

21550344002626 is a wasteful number, since it uses less digits than its factorization.

21550344002626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51067166096.

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 21550344002626 in words is "twenty-one trillion, five hundred fifty billion, three hundred forty-four million, two thousand, six hundred twenty-six".