961662651 has 8 divisors (see below), whose sum is σ = 1297665600. Its totient is φ = 633384072.

The previous prime is 961662623. The next prime is 961662659. The reversal of 961662651 is 156266169.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 961662651 - 2⁵ = 961662619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (961662659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1930801 + ... + 1931298.

It is an arithmetic number, because the mean of its divisors is an integer number (162208200).

Almost surely, 2^961662651 is an apocalyptic number.

961662651 is a deficient number, since it is larger than the sum of its proper divisors (336002949).

961662651 is a wasteful number, since it uses less digits than its factorization.

961662651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862185.

The product of its digits is 116640, while the sum is 42.

The square root of 961662651 is about 31010.6860775443. The cubic root of 961662651 is about 987.0540082070.

The spelling of 961662651 in words is "nine hundred sixty-one million, six hundred sixty-two thousand, six hundred fifty-one".