22666055521531 has 8 divisors (see below), whose sum is σ = 22722976090640. Its totient is φ = 22609142281728.

The previous prime is 22666055521519. The next prime is 22666055521579. The reversal of 22666055521531 is 13512555066622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22666055521531 - 2⁹ = 22666055521019 is a prime.

It is a super-2 number, since 2×22666055521531² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22666055528531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4386955 + ... + 8036011.

It is an arithmetic number, because the mean of its divisors is an integer number (2840372011330).

Almost surely, 2^{22666055521531} is an apocalyptic number.

22666055521531 is a deficient number, since it is larger than the sum of its proper divisors (56920569109).

22666055521531 is a wasteful number, since it uses less digits than its factorization.

22666055521531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3664653.

The product of its (nonzero) digits is 3240000, while the sum is 49.

The spelling of 22666055521531 in words is "twenty-two trillion, six hundred sixty-six billion, fifty-five million, five hundred twenty-one thousand, five hundred thirty-one".