664477146641150 has 48 divisors (see below), whose sum is σ = 1236134173338960. Its totient is φ = 265746415334400.

The previous prime is 664477146641101. The next prime is 664477146641153. The reversal of 664477146641150 is 51146641774466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664477146641153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8750335982 + ... + 8750411918.

It is an arithmetic number, because the mean of its divisors is an integer number (25752795277895).

Almost surely, 2^{664477146641150} is an apocalyptic number.

664477146641150 is a deficient number, since it is larger than the sum of its proper divisors (571657026697810).

664477146641150 is a wasteful number, since it uses less digits than its factorization.

664477146641150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102909 (or 102904 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 62.

The spelling of 664477146641150 in words is "six hundred sixty-four trillion, four hundred seventy-seven billion, one hundred forty-six million, six hundred forty-one thousand, one hundred fifty".