2661255266762 has 8 divisors (see below), whose sum is σ = 3991909291236. Its totient is φ = 1330618836352.

The previous prime is 2661255266731. The next prime is 2661255266783. The reversal of 2661255266762 is 2676625521662.

It can be written as a sum of positive squares in 2 ways, for example, as 2598669737521 + 62585529241 = 1612039^2 + 250171^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2661255266698 and 2661255266707.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4013633 + ... + 4629444.

Almost surely, 2^{2661255266762} is an apocalyptic number.

2661255266762 is a deficient number, since it is larger than the sum of its proper divisors (1330654024474).

2661255266762 is a wasteful number, since it uses less digits than its factorization.

2661255266762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8797032.

The product of its digits is 21772800, while the sum is 56.

The spelling of 2661255266762 in words is "two trillion, six hundred sixty-one billion, two hundred fifty-five million, two hundred sixty-six thousand, seven hundred sixty-two".