2155237246707 has 8 divisors (see below), whose sum is σ = 3042687877776. Its totient is φ = 1352305723392.

The previous prime is 2155237246697. The next prime is 2155237246733. The reversal of 2155237246707 is 7076427325512.

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

It is not a de Polignac number, because 2155237246707 - 2¹⁰ = 2155237245683 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 42259553857 = 2155237246707 / (2 + 1 + 5 + 5 + 2 + 3 + 7 + 2 + 4 + 6 + 7 + 0 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 2155237246707.

It is not an unprimeable number, because it can be changed into a prime (2155237246787) 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, 21129776878 + ... + 21129776979.

It is an arithmetic number, because the mean of its divisors is an integer number (380335984722).

Almost surely, 2^{2155237246707} is an apocalyptic number.

2155237246707 is a deficient number, since it is larger than the sum of its proper divisors (887450631069).

2155237246707 is a wasteful number, since it uses less digits than its factorization.

2155237246707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42259553877.

The product of its (nonzero) digits is 4939200, while the sum is 51.

The spelling of 2155237246707 in words is "two trillion, one hundred fifty-five billion, two hundred thirty-seven million, two hundred forty-six thousand, seven hundred seven".