20196819702 has 48 divisors (see below), whose sum is σ = 44538960960. Its totient is φ = 6612591600.

The previous prime is 20196819673. The next prime is 20196819707. The reversal of 20196819702 is 20791869102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20196819707) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1363677 + ... + 1378407.

It is an arithmetic number, because the mean of its divisors is an integer number (927895020).

Almost surely, 2^20196819702 is an apocalyptic number.

20196819702 is an abundant number, since it is smaller than the sum of its proper divisors (24342141258).

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

20196819702 is a wasteful number, since it uses less digits than its factorization.

20196819702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16089 (or 16086 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The spelling of 20196819702 in words is "twenty billion, one hundred ninety-six million, eight hundred nineteen thousand, seven hundred two".