192049661440 has 640 divisors, whose sum is σ = 600693553152. Its totient is φ = 57224724480.

The previous prime is 192049661431. The next prime is 192049661519. The reversal of 192049661440 is 44166940291.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 391139595 + ... + 391140085.

Almost surely, 2^192049661440 is an apocalyptic number.

192049661440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 192049661440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300346776576).

192049661440 is an abundant number, since it is smaller than the sum of its proper divisors (408643891712).

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

192049661440 is a wasteful number, since it uses less digits than its factorization.

192049661440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630 (or 614 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 192049661440 in words is "one hundred ninety-two billion, forty-nine million, six hundred sixty-one thousand, four hundred forty".