151061661 has 12 divisors (see below), whose sum is σ = 218312640. Its totient is φ = 100655880.

The previous prime is 151061657. The next prime is 151061663. The reversal of 151061661 is 166160151.

It is not a de Polignac number, because 151061661 - 2² = 151061657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151061663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23596 + ... + 29306.

It is an arithmetic number, because the mean of its divisors is an integer number (18192720).

Almost surely, 2^151061661 is an apocalyptic number.

It is an amenable number.

151061661 is a deficient number, since it is larger than the sum of its proper divisors (67250979).

151061661 is a wasteful number, since it uses less digits than its factorization.

151061661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8656 (or 8653 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 151061661 is about 12290.7144218715. The cubic root of 151061661 is about 532.5798756064.

The spelling of 151061661 in words is "one hundred fifty-one million, sixty-one thousand, six hundred sixty-one".