21626150641601 has 16 divisors (see below), whose sum is σ = 24405897326400. Its totient is φ = 18982037793600.

The previous prime is 21626150641547. The next prime is 21626150641607. The reversal of 21626150641601 is 10614605162612.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21626150641601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21626150641607) 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, 50857295 + ... + 51280763.

It is an arithmetic number, because the mean of its divisors is an integer number (1525368582900).

Almost surely, 2^{21626150641601} is an apocalyptic number.

It is an amenable number.

21626150641601 is a deficient number, since it is larger than the sum of its proper divisors (2779746684799).

21626150641601 is a wasteful number, since it uses less digits than its factorization.

21626150641601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583600.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 21626150641601 in words is "twenty-one trillion, six hundred twenty-six billion, one hundred fifty million, six hundred forty-one thousand, six hundred one".