41666961 has 32 divisors (see below), whose sum is σ = 66705408. Its totient is φ = 22619520.

The previous prime is 41666959. The next prime is 41666969. The reversal of 41666961 is 16966614.

41666961 = T₃₉₈ + T₃₉₉ + ... + T₆₇₈.

It is not a de Polignac number, because 41666961 - 2¹ = 41666959 is a prime.

It is a super-2 number, since 2×41666961² = 3472271277951042, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (41666969) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135570 + ... + 135876.

It is an arithmetic number, because the mean of its divisors is an integer number (2084544).

Almost surely, 2^41666961 is an apocalyptic number.

It is an amenable number.

41666961 is a deficient number, since it is larger than the sum of its proper divisors (25038447).

41666961 is a wasteful number, since it uses less digits than its factorization.

41666961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621.

The product of its digits is 46656, while the sum is 39.

The square root of 41666961 is about 6454.9950426007. The cubic root of 41666961 is about 346.6814534907.

The spelling of 41666961 in words is "forty-one million, six hundred sixty-six thousand, nine hundred sixty-one".