69801111601 has 9 divisors (see below), whose sum is σ = 75587171499. Its totient is φ = 64428624936.

The previous prime is 69801111593. The next prime is 69801111613. The reversal of 69801111601 is 10611110896.

The square root of 69801111601 is 264199.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 10325608225 + 59475503376 = 101615^2 + 243876^2 .

It is not a de Polignac number, because 69801111601 - 2³ = 69801111593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69801151601) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3424426 + ... + 3444748.

It is an arithmetic number, because the mean of its divisors is an integer number (8398574611).

Almost surely, 2^69801111601 is an apocalyptic number.

69801111601 is the 264199-th square number.

69801111601 is the 132100-th centered octagonal number.

It is an amenable number.

69801111601 is a deficient number, since it is larger than the sum of its proper divisors (5786059898).

69801111601 is an frugal number, since it uses more digits than its factorization.

69801111601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40672 (or 20336 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 34.

The spelling of 69801111601 in words is "sixty-nine billion, eight hundred one million, one hundred eleven thousand, six hundred one".