20146993914 has 32 divisors (see below), whose sum is σ = 41106265920. Its totient is φ = 6581457792.

The previous prime is 20146993903. The next prime is 20146993931. The reversal of 20146993914 is 41939964102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77724 + ... + 215255.

It is an arithmetic number, because the mean of its divisors is an integer number (1284570810).

Almost surely, 2^20146993914 is an apocalyptic number.

20146993914 is an abundant number, since it is smaller than the sum of its proper divisors (20959272006).

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

20146993914 is a wasteful number, since it uses less digits than its factorization.

20146993914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293214.

The product of its (nonzero) digits is 419904, while the sum is 48.

The spelling of 20146993914 in words is "twenty billion, one hundred forty-six million, nine hundred ninety-three thousand, nine hundred fourteen".