1966537373 has 8 divisors (see below), whose sum is σ = 2191806720. Its totient is φ = 1753444800.

The previous prime is 1966537369. The next prime is 1966537423. The reversal of 1966537373 is 3737356691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1966537373 - 2² = 1966537369 is a prime.

It is a super-2 number, since 2×1966537373² = 7734538478811482258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1966537333) 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, 3043853 + ... + 3044498.

It is an arithmetic number, because the mean of its divisors is an integer number (273975840).

Almost surely, 2^1966537373 is an apocalyptic number.

It is an amenable number.

1966537373 is a deficient number, since it is larger than the sum of its proper divisors (225269347).

1966537373 is a wasteful number, since it uses less digits than its factorization.

1966537373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6088387.

The product of its digits is 2143260, while the sum is 50.

The square root of 1966537373 is about 44345.6578821422. The cubic root of 1966537373 is about 1252.8547814549.

The spelling of 1966537373 in words is "one billion, nine hundred sixty-six million, five hundred thirty-seven thousand, three hundred seventy-three".