151065600661 has 4 divisors (see below), whose sum is σ = 151112562412. Its totient is φ = 151018638912.

The previous prime is 151065600607. The next prime is 151065600667. The reversal of 151065600661 is 166006560151.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 79126314436 + 71939286225 = 281294^2 + 268215^2 .

It is a cyclic number.

It is not a de Polignac number, because 151065600661 - 2⁷ = 151065600533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 151065600661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151065600667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23476050 + ... + 23482483.

It is an arithmetic number, because the mean of its divisors is an integer number (37778140603).

Almost surely, 2^151065600661 is an apocalyptic number.

It is an amenable number.

151065600661 is a deficient number, since it is larger than the sum of its proper divisors (46961751).

151065600661 is an equidigital number, since it uses as much as digits as its factorization.

151065600661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46961750.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 151065600661 in words is "one hundred fifty-one billion, sixty-five million, six hundred thousand, six hundred sixty-one".