361661045 has 16 divisors (see below), whose sum is σ = 438092928. Its totient is φ = 286608960.

The previous prime is 361661017. The next prime is 361661063. The reversal of 361661045 is 540166163.

It is not a de Polignac number, because 361661045 - 2¹⁰ = 361660021 is a prime.

It is a super-2 number, since 2×361661045² = 261597422940984050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330950 + ... + 332040.

It is an arithmetic number, because the mean of its divisors is an integer number (27380808).

Almost surely, 2^361661045 is an apocalyptic number.

It is an amenable number.

361661045 is a deficient number, since it is larger than the sum of its proper divisors (76431883).

361661045 is a wasteful number, since it uses less digits than its factorization.

361661045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 361661045 is about 19017.3879647022. The cubic root of 361661045 is about 712.4710861356.

The spelling of 361661045 in words is "three hundred sixty-one million, six hundred sixty-one thousand, forty-five".