20446366157 has 8 divisors (see below), whose sum is σ = 24741821376. Its totient is φ = 16494547392.

The previous prime is 20446366151. The next prime is 20446366177. The reversal of 20446366157 is 75166364402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20446366157 - 2²⁸ = 20177930701 is a prime.

It is a super-2 number, since 2×20446366157² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20446366151) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 85908983 + ... + 85909220.

It is an arithmetic number, because the mean of its divisors is an integer number (3092727672).

Almost surely, 2^20446366157 is an apocalyptic number.

It is an amenable number.

20446366157 is a deficient number, since it is larger than the sum of its proper divisors (4295455219).

20446366157 is a wasteful number, since it uses less digits than its factorization.

20446366157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171818227.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 20446366157 in words is "twenty billion, four hundred forty-six million, three hundred sixty-six thousand, one hundred fifty-seven".