964163641646 has 8 divisors (see below), whose sum is σ = 1457633222400. Its totient is φ = 478285900848.

The previous prime is 964163641603. The next prime is 964163641663. The reversal of 964163641646 is 646146361469.

It is a happy number.

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

It is a super-2 number, since 2×964163641646² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 964163641591 and 964163641600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1897959671 + ... + 1897960178.

It is an arithmetic number, because the mean of its divisors is an integer number (182204152800).

Almost surely, 2^964163641646 is an apocalyptic number.

964163641646 is a deficient number, since it is larger than the sum of its proper divisors (493469580754).

964163641646 is a wasteful number, since it uses less digits than its factorization.

964163641646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3795919978.

The product of its digits is 13436928, while the sum is 56.

The spelling of 964163641646 in words is "nine hundred sixty-four billion, one hundred sixty-three million, six hundred forty-one thousand, six hundred forty-six".