1660951141200 has 180 divisors, whose sum is σ = 6207343689820. Its totient is φ = 408849500160.

The previous prime is 1660951141183. The next prime is 1660951141211. The reversal of 1660951141200 is 21411590661.

1660951141200 is a `hidden beast` number, since 1 + 6 + 609 + 5 + 1 + 1 + 41 + 2 + 0 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 21496251456 + 1639454889744 = 146616^2 + 1280412^2 .

It is a tau number, because it is divible by the number of its divisors (180).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17698405 + ... + 17792004.

Almost surely, 2^{1660951141200} is an apocalyptic number.

1660951141200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1660951141200 is an abundant number, since it is smaller than the sum of its proper divisors (4546392548620).

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

1660951141200 is a wasteful number, since it uses less digits than its factorization.

1660951141200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35490446 (or 35490432 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

It can be divided in two parts, 1660951 and 141200, that added together give a triangular number (1802151 = T₁₈₉₈).

The spelling of 1660951141200 in words is "one trillion, six hundred sixty billion, nine hundred fifty-one million, one hundred forty-one thousand, two hundred".