16577310151661 has 8 divisors (see below), whose sum is σ = 18945522450624. Its totient is φ = 14209104136320.

The previous prime is 16577310151651. The next prime is 16577310151673. The reversal of 16577310151661 is 16615101377561.

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 16577310151661 - 2¹⁰ = 16577310150637 is a prime.

It is a super-3 number, since 3×16577310151661³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16577310151651) 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, 7844546 + ... + 9730956.

It is an arithmetic number, because the mean of its divisors is an integer number (2368190306328).

Almost surely, 2^{16577310151661} is an apocalyptic number.

It is an amenable number.

16577310151661 is a deficient number, since it is larger than the sum of its proper divisors (2368212298963).

16577310151661 is a wasteful number, since it uses less digits than its factorization.

16577310151661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3141811.

The product of its (nonzero) digits is 793800, while the sum is 50.

The spelling of 16577310151661 in words is "sixteen trillion, five hundred seventy-seven billion, three hundred ten million, one hundred fifty-one thousand, six hundred sixty-one".