361660345857720 has 256 divisors, whose sum is σ = 1483734752640000. Its totient is φ = 76306358665728.

The previous prime is 361660345857709. The next prime is 361660345857757. The reversal of 361660345857720 is 27758543066163.

361660345857720 is a `hidden beast` number, since 3 + 6 + 1 + 6 + 6 + 0 + 3 + 4 + 58 + 577 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1839850570 + ... + 1840047129.

It is an arithmetic number, because the mean of its divisors is an integer number (5795838877500).

Almost surely, 2^{361660345857720} is an apocalyptic number.

361660345857720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

361660345857720 is an abundant number, since it is smaller than the sum of its proper divisors (1122074406782280).

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

361660345857720 is a wasteful number, since it uses less digits than its factorization.

361660345857720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3679897739 (or 3679897729 counting only the distinct ones).

The product of its (nonzero) digits is 152409600, while the sum is 63.

The spelling of 361660345857720 in words is "three hundred sixty-one trillion, six hundred sixty billion, three hundred forty-five million, eight hundred fifty-seven thousand, seven hundred twenty".