22640129542 has 32 divisors (see below), whose sum is σ = 36412675200. Its totient is φ = 10519753728.

The previous prime is 22640129507. The next prime is 22640129581. The reversal of 22640129542 is 24592104622.

It is a super-2 number, since 2×22640129542² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2334259 + ... + 2343937.

It is an arithmetic number, because the mean of its divisors is an integer number (1137896100).

Almost surely, 2^22640129542 is an apocalyptic number.

22640129542 is a deficient number, since it is larger than the sum of its proper divisors (13772545658).

22640129542 is a wasteful number, since it uses less digits than its factorization.

22640129542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10560.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 22640129542 in words is "twenty-two billion, six hundred forty million, one hundred twenty-nine thousand, five hundred forty-two".