66460144 has 10 divisors (see below), whose sum is σ = 128766560. Its totient is φ = 33230064.

The previous prime is 66460111. The next prime is 66460211. The reversal of 66460144 is 44106466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2076864 + ... + 2076895.

It is an arithmetic number, because the mean of its divisors is an integer number (12876656).

Almost surely, 2^66460144 is an apocalyptic number.

It is an amenable number.

66460144 is a deficient number, since it is larger than the sum of its proper divisors (62306416).

66460144 is a wasteful number, since it uses less digits than its factorization.

66460144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4153767 (or 4153761 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 66460144 is about 8152.3091207338. The cubic root of 66460144 is about 405.0609957413.

The spelling of 66460144 in words is "sixty-six million, four hundred sixty thousand, one hundred forty-four".