22372757640 has 192 divisors, whose sum is σ = 78167980800. Its totient is φ = 5531728896.

The previous prime is 22372757633. The next prime is 22372757653. The reversal of 22372757640 is 4675727322.

22372757640 is a `hidden beast` number, since 2 + 2 + 3 + 72 + 7 + 576 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 286684 + ... + 356276.

It is an arithmetic number, because the mean of its divisors is an integer number (407124900).

Almost surely, 2^22372757640 is an apocalyptic number.

22372757640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22372757640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39083990400).

22372757640 is an abundant number, since it is smaller than the sum of its proper divisors (55795223160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22372757640 is a wasteful number, since it uses less digits than its factorization.

22372757640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69676 (or 69669 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 45.

The spelling of 22372757640 in words is "twenty-two billion, three hundred seventy-two million, seven hundred fifty-seven thousand, six hundred forty".