61366571398 has 8 divisors (see below), whose sum is σ = 100418025960. Its totient is φ = 27893896080.

The previous prime is 61366571369. The next prime is 61366571417. The reversal of 61366571398 is 89317566316.

61366571398 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 congruent number.

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, 1394694783 + ... + 1394694826.

It is an arithmetic number, because the mean of its divisors is an integer number (12552253245).

Almost surely, 2^61366571398 is an apocalyptic number.

61366571398 is a deficient number, since it is larger than the sum of its proper divisors (39051454562).

61366571398 is a wasteful number, since it uses less digits than its factorization.

61366571398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789389622.

The product of its digits is 4898880, while the sum is 55.

The spelling of 61366571398 in words is "sixty-one billion, three hundred sixty-six million, five hundred seventy-one thousand, three hundred ninety-eight".