266946949644 has 24 divisors (see below), whose sum is σ = 642968997888. Its totient is φ = 86111919120.

The previous prime is 266946949603. The next prime is 266946949657. The reversal of 266946949644 is 446949649662.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358799292 + ... + 358800035.

It is an arithmetic number, because the mean of its divisors is an integer number (26790374912).

Almost surely, 2^266946949644 is an apocalyptic number.

It is an amenable number.

266946949644 is an abundant number, since it is smaller than the sum of its proper divisors (376022048244).

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

266946949644 is a wasteful number, since it uses less digits than its factorization.

266946949644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717599365 (or 717599363 counting only the distinct ones).

The product of its digits is 483729408, while the sum is 69.

The spelling of 266946949644 in words is "two hundred sixty-six billion, nine hundred forty-six million, nine hundred forty-nine thousand, six hundred forty-four".