20023306156 has 96 divisors (see below), whose sum is σ = 41113239552. Its totient is φ = 8357126400.

The previous prime is 20023306153. The next prime is 20023306159. The reversal of 20023306156 is 65160332002.

It is an interprime number because it is at equal distance from previous prime (20023306153) and next prime (20023306159).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (20023306153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70753591 + ... + 70753873.

It is an arithmetic number, because the mean of its divisors is an integer number (428262912).

Almost surely, 2^20023306156 is an apocalyptic number.

It is an amenable number.

20023306156 is an abundant number, since it is smaller than the sum of its proper divisors (21089933396).

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

20023306156 is a wasteful number, since it uses less digits than its factorization.

20023306156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719 (or 717 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 20023306156 its reverse (65160332002), we get a palindrome (85183638158).

The spelling of 20023306156 in words is "twenty billion, twenty-three million, three hundred six thousand, one hundred fifty-six".