20158629960 has 64 divisors (see below), whose sum is σ = 69115305600. Its totient is φ = 4607686656.

The previous prime is 20158629917. The next prime is 20158629961. The reversal of 20158629960 is 6992685102.

It is not an unprimeable number, because it can be changed into a prime (20158629961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11998345 + ... + 12000024.

It is an arithmetic number, because the mean of its divisors is an integer number (1079926650).

Almost surely, 2^20158629960 is an apocalyptic number.

20158629960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20158629960 is an abundant number, since it is smaller than the sum of its proper divisors (48956675640).

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

20158629960 is a wasteful number, since it uses less digits than its factorization.

20158629960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23998390 (or 23998386 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 20158629960 in words is "twenty billion, one hundred fifty-eight million, six hundred twenty-nine thousand, nine hundred sixty".