1966761528860 has 24 divisors (see below), whose sum is σ = 4309773090336. Its totient is φ = 752500063040.

The previous prime is 1966761528857. The next prime is 1966761528869. The reversal of 1966761528860 is 688251676691.

It is a super-2 number, since 2×1966761528860² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1966761528869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2137783811 + ... + 2137784730.

It is an arithmetic number, because the mean of its divisors is an integer number (179573878764).

Almost surely, 2^{1966761528860} is an apocalyptic number.

1966761528860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1966761528860 is an abundant number, since it is smaller than the sum of its proper divisors (2343011561476).

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

1966761528860 is a wasteful number, since it uses less digits than its factorization.

1966761528860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275568573 (or 4275568571 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 65.

The spelling of 1966761528860 in words is "one trillion, nine hundred sixty-six billion, seven hundred sixty-one million, five hundred twenty-eight thousand, eight hundred sixty".