661102645301 has 8 divisors (see below), whose sum is σ = 769801463424. Its totient is φ = 555967722960.

The previous prime is 661102645277. The next prime is 661102645339. The reversal of 661102645301 is 103546201166.

661102645301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 661102645301 - 2³⁰ = 660028903477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (661102645361) 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, 890973545 + ... + 890974286.

It is an arithmetic number, because the mean of its divisors is an integer number (96225182928).

Almost surely, 2^661102645301 is an apocalyptic number.

It is an amenable number.

661102645301 is a deficient number, since it is larger than the sum of its proper divisors (108698818123).

661102645301 is a wasteful number, since it uses less digits than its factorization.

661102645301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781947891.

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

Adding to 661102645301 its reverse (103546201166), we get a palindrome (764648846467).

The spelling of 661102645301 in words is "six hundred sixty-one billion, one hundred two million, six hundred forty-five thousand, three hundred one".