2074653332661 has 32 divisors (see below), whose sum is σ = 3604827518208. Its totient is φ = 1029950714880.

The previous prime is 2074653332657. The next prime is 2074653332683. The reversal of 2074653332661 is 1662333564702.

It is not a de Polignac number, because 2074653332661 - 2² = 2074653332657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2074653332661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2074653332611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223508970 + ... + 223518251.

It is an arithmetic number, because the mean of its divisors is an integer number (112650859944).

Almost surely, 2^{2074653332661} is an apocalyptic number.

2074653332661 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2074653332661 is a deficient number, since it is larger than the sum of its proper divisors (1530174185547).

2074653332661 is a wasteful number, since it uses less digits than its factorization.

2074653332661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447027261.

The product of its (nonzero) digits is 3265920, while the sum is 48.

The spelling of 2074653332661 in words is "two trillion, seventy-four billion, six hundred fifty-three million, three hundred thirty-two thousand, six hundred sixty-one".