66465030 has 16 divisors (see below), whose sum is σ = 159516144. Its totient is φ = 17724000.

The previous prime is 66465029. The next prime is 66465037. The reversal of 66465030 is 3056466.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2215501 = 66465030 / (6 + 6 + 4 + 6 + 5 + 0 + 3 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66465037) 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, 1107721 + ... + 1107780.

It is an arithmetic number, because the mean of its divisors is an integer number (9969759).

Almost surely, 2^66465030 is an apocalyptic number.

66465030 is an abundant number, since it is smaller than the sum of its proper divisors (93051114).

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

66465030 is a wasteful number, since it uses less digits than its factorization.

66465030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215511.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 66465030 is about 8152.6087849228. The cubic root of 66465030 is about 405.0709218885.

The spelling of 66465030 in words is "sixty-six million, four hundred sixty-five thousand, thirty".