11661970382239 has 8 divisors (see below), whose sum is σ = 11699836462080. Its totient is φ = 11624106660600.

The previous prime is 11661970382173. The next prime is 11661970382269. The reversal of 11661970382239 is 93228307916611.

It is a happy number.

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 11661970382239 - 2⁹ = 11661970381727 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 (11661970382269) 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, 9602574 + ... + 10748644.

It is an arithmetic number, because the mean of its divisors is an integer number (1462479557760).

Almost surely, 2^{11661970382239} is an apocalyptic number.

11661970382239 is a deficient number, since it is larger than the sum of its proper divisors (37866079841).

11661970382239 is a wasteful number, since it uses less digits than its factorization.

11661970382239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179101.

The product of its (nonzero) digits is 5878656, while the sum is 58.

The spelling of 11661970382239 in words is "eleven trillion, six hundred sixty-one billion, nine hundred seventy million, three hundred eighty-two thousand, two hundred thirty-nine".