151663399566 has 64 divisors (see below), whose sum is σ = 349495910400. Its totient is φ = 42978426336.

The previous prime is 151663399507. The next prime is 151663399577. The reversal of 151663399566 is 665993366151.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6193575 + ... + 6218013.

It is an arithmetic number, because the mean of its divisors is an integer number (5460873600).

Almost surely, 2^151663399566 is an apocalyptic number.

151663399566 is an abundant number, since it is smaller than the sum of its proper divisors (197832510834).

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

151663399566 is a wasteful number, since it uses less digits than its factorization.

151663399566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25653.

The product of its digits is 23619600, while the sum is 60.

The spelling of 151663399566 in words is "one hundred fifty-one billion, six hundred sixty-three million, three hundred ninety-nine thousand, five hundred sixty-six".