5402064306661 has 4 divisors (see below), whose sum is σ = 5893161061824. Its totient is φ = 4910967551500.

The previous prime is 5402064306601. The next prime is 5402064306679. The reversal of 5402064306661 is 1666034602045.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5402064306661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5402064306601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245548377565 + ... + 245548377586.

It is an arithmetic number, because the mean of its divisors is an integer number (1473290265456).

Almost surely, 2^{5402064306661} is an apocalyptic number.

It is an amenable number.

5402064306661 is a deficient number, since it is larger than the sum of its proper divisors (491096755163).

5402064306661 is a wasteful number, since it uses less digits than its factorization.

5402064306661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491096755162.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 5402064306661 in words is "five trillion, four hundred two billion, sixty-four million, three hundred six thousand, six hundred sixty-one".