2661150061612 has 96 divisors (see below), whose sum is σ = 5643342673920. Its totient is φ = 1073988115200.

The previous prime is 2661150061607. The next prime is 2661150061627. The reversal of 2661150061612 is 2161600511662.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5252653 + ... + 5736955.

It is an arithmetic number, because the mean of its divisors is an integer number (58784819520).

Almost surely, 2^{2661150061612} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2661150061612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2821671336960).

2661150061612 is an abundant number, since it is smaller than the sum of its proper divisors (2982192612308).

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

2661150061612 is a wasteful number, since it uses less digits than its factorization.

2661150061612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484511 (or 484509 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 2661150061612 in words is "two trillion, six hundred sixty-one billion, one hundred fifty million, sixty-one thousand, six hundred twelve".