23158536420 has 48 divisors (see below), whose sum is σ = 65127101760. Its totient is φ = 6148638336.

The previous prime is 23158536389. The next prime is 23158536437. The reversal of 23158536420 is 2463585132.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 829002 + ... + 856481.

It is an arithmetic number, because the mean of its divisors is an integer number (1356814620).

Almost surely, 2^23158536420 is an apocalyptic number.

23158536420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23158536420 is an abundant number, since it is smaller than the sum of its proper divisors (41968565340).

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

23158536420 is a wasteful number, since it uses less digits than its factorization.

23158536420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685724 (or 1685722 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 23158536420 in words is "twenty-three billion, one hundred fifty-eight million, five hundred thirty-six thousand, four hundred twenty".