20615827102 has 16 divisors (see below), whose sum is σ = 33771542112. Its totient is φ = 9380982240.

The previous prime is 20615827033. The next prime is 20615827103. The reversal of 20615827102 is 20172851602.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20615827103) 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, 5582073 + ... + 5585764.

It is an arithmetic number, because the mean of its divisors is an integer number (2110721382).

Almost surely, 2^20615827102 is an apocalyptic number.

20615827102 is a deficient number, since it is larger than the sum of its proper divisors (13155715010).

20615827102 is a wasteful number, since it uses less digits than its factorization.

20615827102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11167923.

The product of its (nonzero) digits is 13440, while the sum is 34.

The spelling of 20615827102 in words is "twenty billion, six hundred fifteen million, eight hundred twenty-seven thousand, one hundred two".