667463265280 has 176 divisors, whose sum is σ = 1846067135040. Its totient is φ = 226817998848.

The previous prime is 667463265277. The next prime is 667463265283. The reversal of 667463265280 is 82562364766.

It is an interprime number because it is at equal distance from previous prime (667463265277) and next prime (667463265283).

It is not an unprimeable number, because it can be changed into a prime (667463265283) 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, 3967516 + ... + 4132324.

Almost surely, 2^667463265280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 667463265280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (923033567520).

667463265280 is an abundant number, since it is smaller than the sum of its proper divisors (1178603869760).

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

667463265280 is a wasteful number, since it uses less digits than its factorization.

667463265280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164954 (or 164936 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 55.

The spelling of 667463265280 in words is "six hundred sixty-seven billion, four hundred sixty-three million, two hundred sixty-five thousand, two hundred eighty".