2061665102 has 24 divisors (see below), whose sum is σ = 3601629360. Its totient is φ = 882530880.

The previous prime is 2061665093. The next prime is 2061665113. The reversal of 2061665102 is 2015661602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74399 + ... + 98277.

It is an arithmetic number, because the mean of its divisors is an integer number (150067890).

Almost surely, 2^2061665102 is an apocalyptic number.

2061665102 is a deficient number, since it is larger than the sum of its proper divisors (1539964258).

2061665102 is a wasteful number, since it uses less digits than its factorization.

2061665102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24776 (or 24769 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2061665102 is about 45405.5624565978. The cubic root of 2061665102 is about 1272.7390615423.

The spelling of 2061665102 in words is "two billion, sixty-one million, six hundred sixty-five thousand, one hundred two".