664612246354 has 8 divisors (see below), whose sum is σ = 1139335279488. Its totient is φ = 284833819860.

The previous prime is 664612246339. The next prime is 664612246393. The reversal of 664612246354 is 453642216466.

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

It is a junction number, because it is equal to n+sod(n) for n = 664612246298 and 664612246307.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23736151642 + ... + 23736151669.

It is an arithmetic number, because the mean of its divisors is an integer number (142416909936).

Almost surely, 2^664612246354 is an apocalyptic number.

664612246354 is a deficient number, since it is larger than the sum of its proper divisors (474723033134).

664612246354 is a wasteful number, since it uses less digits than its factorization.

664612246354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47472303320.

The product of its digits is 4976640, while the sum is 49.

The spelling of 664612246354 in words is "six hundred sixty-four billion, six hundred twelve million, two hundred forty-six thousand, three hundred fifty-four".