20100196902 has 16 divisors (see below), whose sum is σ = 41586614640. Its totient is φ = 6469028832.

The previous prime is 20100196889. The next prime is 20100196939. The reversal of 20100196902 is 20969100102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20100196902.

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, 57759013 + ... + 57759360.

It is an arithmetic number, because the mean of its divisors is an integer number (2599163415).

Almost surely, 2^20100196902 is an apocalyptic number.

20100196902 is an abundant number, since it is smaller than the sum of its proper divisors (21486417738).

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

20100196902 is a wasteful number, since it uses less digits than its factorization.

20100196902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115518407.

The product of its (nonzero) digits is 1944, while the sum is 30.

The spelling of 20100196902 in words is "twenty billion, one hundred million, one hundred ninety-six thousand, nine hundred two".