20708193340 has 24 divisors (see below), whose sum is σ = 46045277712. Its totient is φ = 7796025600.

The previous prime is 20708193301. The next prime is 20708193413. The reversal of 20708193340 is 4339180702.

It is a self number, because there is not a number n which added to its sum of digits gives 20708193340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30452886 + ... + 30453565.

It is an arithmetic number, because the mean of its divisors is an integer number (1918553238).

Almost surely, 2^20708193340 is an apocalyptic number.

20708193340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20708193340 is an abundant number, since it is smaller than the sum of its proper divisors (25337084372).

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

20708193340 is a wasteful number, since it uses less digits than its factorization.

20708193340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60906477 (or 60906475 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 20708193340 in words is "twenty billion, seven hundred eight million, one hundred ninety-three thousand, three hundred forty".