20155115082 has 16 divisors (see below), whose sum is σ = 40312526400. Its totient is φ = 6717988992.

The previous prime is 20155115069. The next prime is 20155115083. The reversal of 20155115082 is 28051155102.

It is not an unprimeable number, because it can be changed into a prime (20155115083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31419 + ... + 203217.

It is an arithmetic number, because the mean of its divisors is an integer number (2519532900).

Almost surely, 2^20155115082 is an apocalyptic number.

20155115082 is an abundant number, since it is smaller than the sum of its proper divisors (20157411318).

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

20155115082 is a wasteful number, since it uses less digits than its factorization.

20155115082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191357.

The product of its (nonzero) digits is 4000, while the sum is 30.

The spelling of 20155115082 in words is "twenty billion, one hundred fifty-five million, one hundred fifteen thousand, eighty-two".