16161101639 has 8 divisors (see below), whose sum is σ = 17255939712. Its totient is φ = 15098945400.

The previous prime is 16161101611. The next prime is 16161101657. The reversal of 16161101639 is 93610116161.

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 16161101639 - 2¹² = 16161097543 is a prime.

It is a super-2 number, since 2×16161101639² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16161101599 and 16161101608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16161101659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8169437 + ... + 8171414.

It is an arithmetic number, because the mean of its divisors is an integer number (2156992464).

Almost surely, 2^16161101639 is an apocalyptic number.

16161101639 is a deficient number, since it is larger than the sum of its proper divisors (1094838073).

16161101639 is a wasteful number, since it uses less digits than its factorization.

16161101639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16340917.

The product of its (nonzero) digits is 5832, while the sum is 35.

The spelling of 16161101639 in words is "sixteen billion, one hundred sixty-one million, one hundred one thousand, six hundred thirty-nine".