15940042750240 has 96 divisors (see below), whose sum is σ = 44522188462080. Its totient is φ = 5276703796224.

The previous prime is 15940042750223. The next prime is 15940042750249. The reversal of 15940042750240 is 4205724004951.

It is a super-4 number, since 4×15940042750240⁴ (a number of 54 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (15940042750249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245349952 + ... + 245414911.

It is an arithmetic number, because the mean of its divisors is an integer number (463772796480).

Almost surely, 2^{15940042750240} is an apocalyptic number.

15940042750240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15940042750240 is an abundant number, since it is smaller than the sum of its proper divisors (28582145711840).

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

15940042750240 is a wasteful number, since it uses less digits than its factorization.

15940042750240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490764914 (or 490764906 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 15940042750240 in words is "fifteen trillion, nine hundred forty billion, forty-two million, seven hundred fifty thousand, two hundred forty".