1245118664 has 16 divisors (see below), whose sum is σ = 2388891120. Its totient is φ = 608081040.

The previous prime is 1245118631. The next prime is 1245118691. The reversal of 1245118664 is 4668115421.

It is a super-2 number, since 2×1245118664² = 3100640974882289792, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1809422 + ... + 1810109.

It is an arithmetic number, because the mean of its divisors is an integer number (149305695).

Almost surely, 2^1245118664 is an apocalyptic number.

It is an amenable number.

1245118664 is a deficient number, since it is larger than the sum of its proper divisors (1143772456).

1245118664 is a wasteful number, since it uses less digits than its factorization.

1245118664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3619580 (or 3619576 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 1245118664 is about 35286.2390174980. The cubic root of 1245118664 is about 1075.8133131983.

The spelling of 1245118664 in words is "one billion, two hundred forty-five million, one hundred eighteen thousand, six hundred sixty-four".