661732914334 has 4 divisors (see below), whose sum is σ = 992599371504. Its totient is φ = 330866457166.

The previous prime is 661732914319. The next prime is 661732914341. The reversal of 661732914334 is 433419237166.

661732914334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165433228582 + ... + 165433228585.

It is an arithmetic number, because the mean of its divisors is an integer number (248149842876).

Almost surely, 2^661732914334 is an apocalyptic number.

661732914334 is a deficient number, since it is larger than the sum of its proper divisors (330866457170).

661732914334 is a wasteful number, since it uses less digits than its factorization.

661732914334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330866457169.

The product of its digits is 1959552, while the sum is 49.

The spelling of 661732914334 in words is "six hundred sixty-one billion, seven hundred thirty-two million, nine hundred fourteen thousand, three hundred thirty-four".