2661201120507 has 16 divisors (see below), whose sum is σ = 3593250877440. Its totient is φ = 1751643571392.

The previous prime is 2661201120469. The next prime is 2661201120509. The reversal of 2661201120507 is 7050211021662.

It is not a de Polignac number, because 2661201120507 - 2¹² = 2661201116411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2661201120509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23657398 + ... + 23769620.

It is an arithmetic number, because the mean of its divisors is an integer number (224578179840).

Almost surely, 2^{2661201120507} is an apocalyptic number.

2661201120507 is a deficient number, since it is larger than the sum of its proper divisors (932049756933).

2661201120507 is a wasteful number, since it uses less digits than its factorization.

2661201120507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212362.

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 2661201120507 in words is "two trillion, six hundred sixty-one billion, two hundred one million, one hundred twenty thousand, five hundred seven".