1966006776 has 32 divisors (see below), whose sum is σ = 4929621840. Its totient is φ = 653388288.

The previous prime is 1966006771. The next prime is 1966006781. The reversal of 1966006776 is 6776006691.

It is an interprime number because it is at equal distance from previous prime (1966006771) and next prime (1966006781).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1966006771) 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, 113451 + ... + 129626.

Almost surely, 2^1966006776 is an apocalyptic number.

It is an amenable number.

1966006776 is an abundant number, since it is smaller than the sum of its proper divisors (2963615064).

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

1966006776 is a wasteful number, since it uses less digits than its factorization.

1966006776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243423 (or 243419 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 48.

The square root of 1966006776 is about 44339.6749649792. The cubic root of 1966006776 is about 1252.7420925576.

The spelling of 1966006776 in words is "one billion, nine hundred sixty-six million, six thousand, seven hundred seventy-six".