615198066 has 32 divisors (see below), whose sum is σ = 1467307008. Its totient is φ = 168128400.

The previous prime is 615198061. The next prime is 615198079. The reversal of 615198066 is 660891516.

It is a happy number.

615198066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (615198061) 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, 317460 + ... + 319391.

It is an arithmetic number, because the mean of its divisors is an integer number (45853344).

Almost surely, 2^615198066 is an apocalyptic number.

615198066 is an abundant number, since it is smaller than the sum of its proper divisors (852108942).

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

615198066 is a wasteful number, since it uses less digits than its factorization.

615198066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636886.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 615198066 is about 24803.1866097887. The cubic root of 615198066 is about 850.4947827513.

The spelling of 615198066 in words is "six hundred fifteen million, one hundred ninety-eight thousand, sixty-six".