2661217611752 has 32 divisors (see below), whose sum is σ = 6038056768320. Its totient is φ = 1073432313600.

The previous prime is 2661217611709. The next prime is 2661217611761. The reversal of 2661217611752 is 2571167121662.

It is a junction number, because it is equal to n+sod(n) for n = 2661217611697 and 2661217611706.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1397697374 + ... + 1397699277.

It is an arithmetic number, because the mean of its divisors is an integer number (188689274010).

Almost surely, 2^{2661217611752} is an apocalyptic number.

It is an amenable number.

2661217611752 is an abundant number, since it is smaller than the sum of its proper divisors (3376839156568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2661217611752 is a wasteful number, since it uses less digits than its factorization.

2661217611752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2795396681 (or 2795396677 counting only the distinct ones).

The product of its digits is 423360, while the sum is 47.

The spelling of 2661217611752 in words is "two trillion, six hundred sixty-one billion, two hundred seventeen million, six hundred eleven thousand, seven hundred fifty-two".