667464005770 has 8 divisors (see below), whose sum is σ = 1201435210404. Its totient is φ = 266985602304.

The previous prime is 667464005753. The next prime is 667464005773. The reversal of 667464005770 is 77500464766.

It can be written as a sum of positive squares in 2 ways, for example, as 664549409601 + 2914596169 = 815199^2 + 53987^2 .

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

It is not an unprimeable number, because it can be changed into a prime (667464005773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33373200279 + ... + 33373200298.

Almost surely, 2^667464005770 is an apocalyptic number.

667464005770 is a deficient number, since it is larger than the sum of its proper divisors (533971204634).

667464005770 is a wasteful number, since it uses less digits than its factorization.

667464005770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66746400584.

The product of its (nonzero) digits is 5927040, while the sum is 52.

The spelling of 667464005770 in words is "six hundred sixty-seven billion, four hundred sixty-four million, five thousand, seven hundred seventy".