660401052254 has 16 divisors (see below), whose sum is σ = 992647826208. Its totient is φ = 329518920192.

The previous prime is 660401052251. The next prime is 660401052263. The reversal of 660401052254 is 452250104066.

It is a super-2 number, since 2×660401052254² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660401052251) 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, 2687159 + ... + 2922605.

It is an arithmetic number, because the mean of its divisors is an integer number (62040489138).

Almost surely, 2^660401052254 is an apocalyptic number.

660401052254 is a deficient number, since it is larger than the sum of its proper divisors (332246773954).

660401052254 is a wasteful number, since it uses less digits than its factorization.

660401052254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238339.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 660401052254 in words is "six hundred sixty billion, four hundred one million, fifty-two thousand, two hundred fifty-four".