615255142261601 has 8 divisors (see below), whose sum is σ = 625587586617600. Its totient is φ = 604930642889040.

The previous prime is 615255142261561. The next prime is 615255142261693. The reversal of 615255142261601 is 106162241552516.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-615255142261601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (615255142260601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1986089681 + ... + 1986399438.

It is an arithmetic number, because the mean of its divisors is an integer number (78198448327200).

Almost surely, 2^{615255142261601} is an apocalyptic number.

615255142261601 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

615255142261601 is a deficient number, since it is larger than the sum of its proper divisors (10332444355999).

615255142261601 is a wasteful number, since it uses less digits than its factorization.

615255142261601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3972491719.

The product of its (nonzero) digits is 864000, while the sum is 47.

The spelling of 615255142261601 in words is "six hundred fifteen trillion, two hundred fifty-five billion, one hundred forty-two million, two hundred sixty-one thousand, six hundred one".