20013777734170 has 48 divisors (see below), whose sum is σ = 40188515086944. Its totient is φ = 7169114383200.

The previous prime is 20013777734161. The next prime is 20013777734183. The reversal of 20013777734170 is 7143777731002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123354096 + ... + 123516235.

It is an arithmetic number, because the mean of its divisors is an integer number (837260730978).

Almost surely, 2^{20013777734170} is an apocalyptic number.

20013777734170 is an abundant number, since it is smaller than the sum of its proper divisors (20174737352774).

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

20013777734170 is a wasteful number, since it uses less digits than its factorization.

20013777734170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246870427 (or 246870416 counting only the distinct ones).

The product of its (nonzero) digits is 1210104, while the sum is 49.

The spelling of 20013777734170 in words is "twenty trillion, thirteen billion, seven hundred seventy-seven million, seven hundred thirty-four thousand, one hundred seventy".