2173361990040 has 128 divisors (see below), whose sum is σ = 7625831616000. Its totient is φ = 549059865984.

The previous prime is 2173361989973. The next prime is 2173361990057. The reversal of 2173361990040 is 400991633712.

2173361990040 is a `hidden beast` number, since 21 + 7 + 3 + 3 + 619 + 9 + 0 + 0 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52936644 + ... + 52977683.

It is an arithmetic number, because the mean of its divisors is an integer number (59576809500).

Almost surely, 2^{2173361990040} is an apocalyptic number.

2173361990040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2173361990040 is an abundant number, since it is smaller than the sum of its proper divisors (5452469625960).

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

2173361990040 is a wasteful number, since it uses less digits than its factorization.

2173361990040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105914366 (or 105914356 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 2173361990040 in words is "two trillion, one hundred seventy-three billion, three hundred sixty-one million, nine hundred ninety thousand, forty".