615615066 has 40 divisors (see below), whose sum is σ = 1504841184. Its totient is φ = 186549480.

The previous prime is 615615061. The next prime is 615615083. The reversal of 615615066 is 660516516.

It is a self number, because there is not a number n which added to its sum of digits gives 615615066.

It is not an unprimeable number, because it can be changed into a prime (615615061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 170950 + ... + 174513.

Almost surely, 2^615615066 is an apocalyptic number.

615615066 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

615615066 is an abundant number, since it is smaller than the sum of its proper divisors (889226118).

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

615615066 is a wasteful number, since it uses less digits than its factorization.

615615066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345488 (or 345479 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 615615066 is about 24811.5913637155. The cubic root of 615615066 is about 850.6869031116.

The spelling of 615615066 in words is "six hundred fifteen million, six hundred fifteen thousand, sixty-six".