20292259968 has 120 divisors (see below), whose sum is σ = 60432633855. Its totient is φ = 6759251712.

The previous prime is 20292259963. The next prime is 20292260003. The reversal of 20292259968 is 86995229202.

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.

20292259968 is a `hidden beast` number, since 2 + 0 + 29 + 22 + 599 + 6 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10146129984 + 10146129984 = 100728^2 + 100728^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=100728.

It is a super-2 number, since 2×20292259968² (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 (20292259963) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 14504133 + ... + 14505531.

Almost surely, 2^20292259968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20292259968

20292259968 is an abundant number, since it is smaller than the sum of its proper divisors (40140373887).

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

20292259968 is an frugal number, since it uses more digits than its factorization.

20292259968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824 (or 1404 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 20292259968 in words is "twenty billion, two hundred ninety-two million, two hundred fifty-nine thousand, nine hundred sixty-eight".