20264244466842 has 64 divisors (see below), whose sum is σ = 48505344491520. Its totient is φ = 6252642039600.

The previous prime is 20264244466831. The next prime is 20264244466859. The reversal of 20264244466842 is 24866444246202.

20264244466842 is a `hidden beast` number, since 2 + 0 + 2 + 64 + 2 + 44 + 466 + 84 + 2 = 666.

It is a super-2 number, since 2×20264244466842² (a number of 27 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 263119834 + ... + 263196837.

It is an arithmetic number, because the mean of its divisors is an integer number (757896007680).

Almost surely, 2^{20264244466842} is an apocalyptic number.

20264244466842 is an abundant number, since it is smaller than the sum of its proper divisors (28241100024678).

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

20264244466842 is a wasteful number, since it uses less digits than its factorization.

20264244466842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526316736 (or 526316730 counting only the distinct ones).

The product of its (nonzero) digits is 28311552, while the sum is 54.

The spelling of 20264244466842 in words is "twenty trillion, two hundred sixty-four billion, two hundred forty-four million, four hundred sixty-six thousand, eight hundred forty-two".