201630161523060 has 144 divisors (see below), whose sum is σ = 612340050787920. Its totient is φ = 53704008529920.

The previous prime is 201630161523041. The next prime is 201630161523061. The reversal of 201630161523060 is 60325161036102.

201630161523060 is a `hidden beast` number, since 2 + 0 + 1 + 6 + 3 + 0 + 1 + 615 + 2 + 30 + 6 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 26017466935824 + 175612694587236 = 5100732^2 + 13251894^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201630161523061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1394433246 + ... + 1394577834.

It is an arithmetic number, because the mean of its divisors is an integer number (4252361463805).

Almost surely, 2^{201630161523060} is an apocalyptic number.

201630161523060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201630161523060 is an abundant number, since it is smaller than the sum of its proper divisors (410709889264860).

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

201630161523060 is a wasteful number, since it uses less digits than its factorization.

201630161523060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153778 (or 153773 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 201630161523060 in words is "two hundred one trillion, six hundred thirty billion, one hundred sixty-one million, five hundred twenty-three thousand, sixty".