660091962 has 16 divisors (see below), whose sum is σ = 1323129600. Its totient is φ = 219539712.

The previous prime is 660091961. The next prime is 660091987. The reversal of 660091962 is 269190066.

It is a self number, because there is not a number n which added to its sum of digits gives 660091962.

It is not an unprimeable number, because it can be changed into a prime (660091961) 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, 119818 + ... + 125205.

It is an arithmetic number, because the mean of its divisors is an integer number (82695600).

Almost surely, 2^660091962 is an apocalyptic number.

660091962 is an abundant number, since it is smaller than the sum of its proper divisors (663037638).

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

660091962 is a wasteful number, since it uses less digits than its factorization.

660091962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245477.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 660091962 is about 25692.2549029858. The cubic root of 660091962 is about 870.6992053816.

The spelling of 660091962 in words is "six hundred sixty million, ninety-one thousand, nine hundred sixty-two".