661114602305 has 8 divisors (see below), whose sum is σ = 796354016832. Its totient is φ = 526880685808.

The previous prime is 661114602271. The next prime is 661114602307. The reversal of 661114602305 is 503206411166.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-661114602305 is a prime.

It is a super-2 number, since 2×661114602305² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (661114602307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251373059 + ... + 251375688.

It is an arithmetic number, because the mean of its divisors is an integer number (99544252104).

Almost surely, 2^661114602305 is an apocalyptic number.

It is an amenable number.

661114602305 is a deficient number, since it is larger than the sum of its proper divisors (135239414527).

661114602305 is a wasteful number, since it uses less digits than its factorization.

661114602305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502749015.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 661114602305 in words is "six hundred sixty-one billion, one hundred fourteen million, six hundred two thousand, three hundred five".