2401991110665 has 48 divisors (see below), whose sum is σ = 4550565367296. Its totient is φ = 1166811609600.

The previous prime is 2401991110663. The next prime is 2401991110667. The reversal of 2401991110665 is 5660111991042.

It is an interprime number because it is at equal distance from previous prime (2401991110663) and next prime (2401991110667).

It is not a de Polignac number, because 2401991110665 - 2¹ = 2401991110663 is a prime.

It is a super-2 number, since 2×2401991110665² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2401991110665.

It is not an unprimeable number, because it can be changed into a prime (2401991110663) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50619151 + ... + 50666580.

It is an arithmetic number, because the mean of its divisors is an integer number (94803445152).

Almost surely, 2^{2401991110665} is an apocalyptic number.

It is an amenable number.

2401991110665 is a deficient number, since it is larger than the sum of its proper divisors (2148574256631).

2401991110665 is a wasteful number, since it uses less digits than its factorization.

2401991110665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101285790 (or 101285787 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The spelling of 2401991110665 in words is "two trillion, four hundred one billion, nine hundred ninety-one million, one hundred ten thousand, six hundred sixty-five".