140297665856544 has 576 divisors, whose sum is σ = 480187749629952. Its totient is φ = 38021654016000.

The previous prime is 140297665856449. The next prime is 140297665856561. The reversal of 140297665856544 is 445658566792041.

140297665856544 is a `hidden beast` number, since 1 + 4 + 0 + 2 + 9 + 7 + 6 + 6 + 58 + 565 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 586490049 + ... + 586729215.

It is an arithmetic number, because the mean of its divisors is an integer number (833659287552).

Almost surely, 2^{140297665856544} is an apocalyptic number.

140297665856544 is a gapful number since it is divisible by the number (14) 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 140297665856544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240093874814976).

140297665856544 is an abundant number, since it is smaller than the sum of its proper divisors (339890083773408).

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

140297665856544 is a wasteful number, since it uses less digits than its factorization.

140297665856544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239429 (or 239418 counting only the distinct ones).

The product of its (nonzero) digits is 1741824000, while the sum is 72.

The spelling of 140297665856544 in words is "one hundred forty trillion, two hundred ninety-seven billion, six hundred sixty-five million, eight hundred fifty-six thousand, five hundred forty-four".