451011660 has 48 divisors (see below), whose sum is σ = 1377637632. Its totient is φ = 109336000.

The previous prime is 451011641. The next prime is 451011661. The reversal of 451011660 is 66110154.

It is a self number, because there is not a number n which added to its sum of digits gives 451011660.

It is not an unprimeable number, because it can be changed into a prime (451011661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341016 + ... + 342335.

It is an arithmetic number, because the mean of its divisors is an integer number (28700784).

Almost surely, 2^451011660 is an apocalyptic number.

It is an amenable number.

451011660 is an abundant number, since it is smaller than the sum of its proper divisors (926625972).

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

451011660 is a wasteful number, since it uses less digits than its factorization.

451011660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683374 (or 683372 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 451011660 is about 21237.0351037992. The cubic root of 451011660 is about 766.8832578556.

The spelling of 451011660 in words is "four hundred fifty-one million, eleven thousand, six hundred sixty".