22297651488 has 270 divisors, whose sum is σ = 76465680291. Its totient is φ = 6355552896.

The previous prime is 22297651483. The next prime is 22297651561. The reversal of 22297651488 is 88415679222.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

22297651488 is a `hidden beast` number, since 2 + 22 + 97 + 6 + 51 + 488 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11148825744 + 11148825744 = 105588^2 + 105588^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=105588.

It is a super-2 number, since 2×22297651488² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (22297651483) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 53216143 + ... + 53216561.

Almost surely, 2^22297651488 is an apocalyptic number.

22297651488 is a gapful number since it is divisible by the number (28) 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 22297651488

22297651488 is an abundant number, since it is smaller than the sum of its proper divisors (54168028803).

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

22297651488 is an frugal number, since it uses more digits than its factorization.

22297651488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874 (or 431 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The spelling of 22297651488 in words is "twenty-two billion, two hundred ninety-seven million, six hundred fifty-one thousand, four hundred eighty-eight".