361611660 has 48 divisors (see below), whose sum is σ = 1029121632. Its totient is φ = 94848000.

The previous prime is 361611659. The next prime is 361611673. The reversal of 361611660 is 66116163.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 45741 + ... + 53060.

It is an arithmetic number, because the mean of its divisors is an integer number (21440034).

Almost surely, 2^361611660 is an apocalyptic number.

361611660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

361611660 is an abundant number, since it is smaller than the sum of its proper divisors (667509972).

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

361611660 is a wasteful number, since it uses less digits than its factorization.

361611660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98874 (or 98872 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 361611660 is about 19016.0895033653. The cubic root of 361611660 is about 712.4386552294.

The spelling of 361611660 in words is "three hundred sixty-one million, six hundred eleven thousand, six hundred sixty".