2646655402 has 16 divisors (see below), whose sum is σ = 4143762432. Its totient is φ = 1265433840.

The previous prime is 2646655397. The next prime is 2646655423. The reversal of 2646655402 is 2045566462.

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, 233527 + ... + 244597.

It is an arithmetic number, because the mean of its divisors is an integer number (258985152).

Almost surely, 2^2646655402 is an apocalyptic number.

2646655402 is a deficient number, since it is larger than the sum of its proper divisors (1497107030).

2646655402 is a wasteful number, since it uses less digits than its factorization.

2646655402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16293.

The product of its (nonzero) digits is 345600, while the sum is 40.

The square root of 2646655402 is about 51445.6548408124. The cubic root of 2646655402 is about 1383.2450765712.

The spelling of 2646655402 in words is "two billion, six hundred forty-six million, six hundred fifty-five thousand, four hundred two".