151566660605 has 16 divisors (see below), whose sum is σ = 182852131440. Its totient is φ = 120605442048.

The previous prime is 151566660599. The next prime is 151566660677. The reversal of 151566660605 is 506066665151.

It can be written as a sum of positive squares in 8 ways, for example, as 12316782361 + 139249878244 = 110981^2 + 373162^2 .

It is a cyclic number.

It is not a de Polignac number, because 151566660605 - 2¹⁴ = 151566644221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151566660605.

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, 9905801 + ... + 9921089.

It is an arithmetic number, because the mean of its divisors is an integer number (11428258215).

Almost surely, 2^151566660605 is an apocalyptic number.

It is an amenable number.

151566660605 is a deficient number, since it is larger than the sum of its proper divisors (31285470835).

151566660605 is a wasteful number, since it uses less digits than its factorization.

151566660605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25760.

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 151566660605 in words is "one hundred fifty-one billion, five hundred sixty-six million, six hundred sixty thousand, six hundred five".