20430435662 has 32 divisors (see below), whose sum is σ = 37725606912. Its totient is φ = 8080681824.

The previous prime is 20430435647. The next prime is 20430435671. The reversal of 20430435662 is 26653403402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1211573 + ... + 1228319.

It is an arithmetic number, because the mean of its divisors is an integer number (1178925216).

Almost surely, 2^20430435662 is an apocalyptic number.

20430435662 is a deficient number, since it is larger than the sum of its proper divisors (17295171250).

20430435662 is a wasteful number, since it uses less digits than its factorization.

20430435662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23472.

The product of its (nonzero) digits is 103680, while the sum is 35.

The spelling of 20430435662 in words is "twenty billion, four hundred thirty million, four hundred thirty-five thousand, six hundred sixty-two".