2664737745 has 24 divisors (see below), whose sum is σ = 4499798976. Its totient is φ = 1346391072.

The previous prime is 2664737729. The next prime is 2664737759. The reversal of 2664737745 is 5477374662.

It is not a de Polignac number, because 2664737745 - 2⁴ = 2664737729 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240637 + ... + 251466.

It is an arithmetic number, because the mean of its divisors is an integer number (187491624).

Almost surely, 2^2664737745 is an apocalyptic number.

It is an amenable number.

2664737745 is a deficient number, since it is larger than the sum of its proper divisors (1835061231).

2664737745 is a wasteful number, since it uses less digits than its factorization.

2664737745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492149 (or 492130 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 51.

The square root of 2664737745 is about 51621.0978670543. The cubic root of 2664737745 is about 1386.3881081534.

The spelling of 2664737745 in words is "two billion, six hundred sixty-four million, seven hundred thirty-seven thousand, seven hundred forty-five".