2660001148639 has 8 divisors (see below), whose sum is σ = 2664003829760. Its totient is φ = 2655999413496.

The previous prime is 2660001148613. The next prime is 2660001148643. The reversal of 2660001148639 is 9368411000662.

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

It is a cyclic number.

It is not a de Polignac number, because 2660001148639 - 2⁹ = 2660001148127 is a prime.

It is a super-2 number, since 2×2660001148639² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660001148699) 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, 5495842 + ... + 5960224.

It is an arithmetic number, because the mean of its divisors is an integer number (333000478720).

Almost surely, 2^{2660001148639} is an apocalyptic number.

2660001148639 is a deficient number, since it is larger than the sum of its proper divisors (4002681121).

2660001148639 is an equidigital number, since it uses as much as digits as its factorization.

2660001148639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472989.

The product of its (nonzero) digits is 373248, while the sum is 46.

It can be divided in two parts, 26600011 and 48639, that added together give a triangular number (26648650 = T₇₃₀₀).

The spelling of 2660001148639 in words is "two trillion, six hundred sixty billion, one million, one hundred forty-eight thousand, six hundred thirty-nine".