2456666001 has 6 divisors (see below), whose sum is σ = 3548517570. Its totient is φ = 1637777328.

The previous prime is 2456665999. The next prime is 2456666059. The reversal of 2456666001 is 1006666542.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2088947025 + 367718976 = 45705^2 + 19176^2 .

It is not a de Polignac number, because 2456666001 - 2¹ = 2456665999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2456666701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 136481436 + ... + 136481453.

It is an arithmetic number, because the mean of its divisors is an integer number (591419595).

Almost surely, 2^2456666001 is an apocalyptic number.

It is an amenable number.

2456666001 is a deficient number, since it is larger than the sum of its proper divisors (1091851569).

2456666001 is a wasteful number, since it uses less digits than its factorization.

2456666001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272962895 (or 272962892 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 2456666001 is about 49564.7657212258. The cubic root of 2456666001 is about 1349.3212868173.

The spelling of 2456666001 in words is "two billion, four hundred fifty-six million, six hundred sixty-six thousand, one".