2661491936300 has 18 divisors (see below), whose sum is σ = 5775437501988. Its totient is φ = 1064596774480.

The previous prime is 2661491936291. The next prime is 2661491936333. The reversal of 2661491936300 is 36391941662.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13307459582 + ... + 13307459781.

Almost surely, 2^{2661491936300} is an apocalyptic number.

2661491936300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2661491936300 is an abundant number, since it is smaller than the sum of its proper divisors (3113945565688).

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

2661491936300 is a wasteful number, since it uses less digits than its factorization.

2661491936300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26614919377 (or 26614919370 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 50.

The spelling of 2661491936300 in words is "two trillion, six hundred sixty-one billion, four hundred ninety-one million, nine hundred thirty-six thousand, three hundred".