1966811292 has 18 divisors (see below), whose sum is σ = 4971661968. Its totient is φ = 655603752.

The previous prime is 1966811269. The next prime is 1966811299. The reversal of 1966811292 is 2921186691.

1966811292 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1966811299) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27316788 + ... + 27316859.

Almost surely, 2^1966811292 is an apocalyptic number.

1966811292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1966811292 is an abundant number, since it is smaller than the sum of its proper divisors (3004850676).

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

1966811292 is a wasteful number, since it uses less digits than its factorization.

1966811292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54633657 (or 54633652 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 1966811292 is about 44348.7462280502. The cubic root of 1966811292 is about 1252.9129488038.

The spelling of 1966811292 in words is "one billion, nine hundred sixty-six million, eight hundred eleven thousand, two hundred ninety-two".