361011661 has 8 divisors (see below), whose sum is σ = 362730240. Its totient is φ = 359297808.

The previous prime is 361011631. The next prime is 361011697. The reversal of 361011661 is 166110163.

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 361011661 - 2⁹ = 361011149 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 (361011631) 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, 324975 + ... + 326083.

It is an arithmetic number, because the mean of its divisors is an integer number (45341280).

Almost surely, 2^361011661 is an apocalyptic number.

It is an amenable number.

361011661 is a deficient number, since it is larger than the sum of its proper divisors (1718579).

361011661 is a wasteful number, since it uses less digits than its factorization.

361011661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2363.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 361011661 is about 19000.3068659430. The cubic root of 361011661 is about 712.0444025301.

The spelling of 361011661 in words is "three hundred sixty-one million, eleven thousand, six hundred sixty-one".