66482090 has 24 divisors (see below), whose sum is σ = 121562532. Its totient is φ = 26178240.

The previous prime is 66482089. The next prime is 66482093. The reversal of 66482090 is 9028466.

It can be written as a sum of positive squares in 2 ways, for example, as 65723449 + 758641 = 8107^2 + 871^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66482090.

It is not an unprimeable number, because it can be changed into a prime (66482093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44150 + ... + 45630.

Almost surely, 2^66482090 is an apocalyptic number.

66482090 is a deficient number, since it is larger than the sum of its proper divisors (55080442).

66482090 is a wasteful number, since it uses less digits than its factorization.

66482090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622 (or 1555 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 66482090 is about 8153.6550086449. The cubic root of 66482090 is about 405.1055762963.

The spelling of 66482090 in words is "sixty-six million, four hundred eighty-two thousand, ninety".