240157554405601 has 4 divisors (see below), whose sum is σ = 274465776463552. Its totient is φ = 205849332347652.

The previous prime is 240157554405551. The next prime is 240157554405661. The reversal of 240157554405601 is 106504455751042.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-240157554405601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240157554405661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17154111028965 + ... + 17154111028978.

It is an arithmetic number, because the mean of its divisors is an integer number (68616444115888).

Almost surely, 2^{240157554405601} is an apocalyptic number.

It is an amenable number.

240157554405601 is a deficient number, since it is larger than the sum of its proper divisors (34308222057951).

240157554405601 is an equidigital number, since it uses as much as digits as its factorization.

240157554405601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34308222057950.

The product of its (nonzero) digits is 3360000, while the sum is 49.

The spelling of 240157554405601 in words is "two hundred forty trillion, one hundred fifty-seven billion, five hundred fifty-four million, four hundred five thousand, six hundred one".