20602266402 has 16 divisors (see below), whose sum is σ = 41221469952. Its totient is φ = 6864599280.

The previous prime is 20602266397. The next prime is 20602266413. The reversal of 20602266402 is 20466220602.

It is a self number, because there is not a number n which added to its sum of digits gives 20602266402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689874 + ... + 719117.

It is an arithmetic number, because the mean of its divisors is an integer number (2576341872).

Almost surely, 2^20602266402 is an apocalyptic number.

20602266402 is an abundant number, since it is smaller than the sum of its proper divisors (20619203550).

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

20602266402 is a wasteful number, since it uses less digits than its factorization.

20602266402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411433.

The product of its (nonzero) digits is 13824, while the sum is 30.

The spelling of 20602266402 in words is "twenty billion, six hundred two million, two hundred sixty-six thousand, four hundred two".