22061566146531 has 4 divisors (see below), whose sum is σ = 29415421528712. Its totient is φ = 14707710764352.

The previous prime is 22061566146527. The next prime is 22061566146559. The reversal of 22061566146531 is 13564166516022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22061566146531 - 2² = 22061566146527 is a prime.

It is a super-3 number, since 3×22061566146531³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22061566126531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3676927691086 + ... + 3676927691091.

It is an arithmetic number, because the mean of its divisors is an integer number (7353855382178).

Almost surely, 2^{22061566146531} is an apocalyptic number.

22061566146531 is a deficient number, since it is larger than the sum of its proper divisors (7353855382181).

22061566146531 is an equidigital number, since it uses as much as digits as its factorization.

22061566146531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7353855382180.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 22061566146531 in words is "twenty-two trillion, sixty-one billion, five hundred sixty-six million, one hundred forty-six thousand, five hundred thirty-one".