3465640161 has 40 divisors (see below), whose sum is σ = 5504241600. Its totient is φ = 2168214048.

The previous prime is 3465640141. The next prime is 3465640193. The reversal of 3465640161 is 1610465643.

It is a happy number.

3465640161 is a `hidden beast` number, since 3 + 4 + 6 + 5 + 640 + 1 + 6 + 1 = 666.

3465640161 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3465640161 - 2⁹ = 3465639649 is a prime.

It is a super-2 number, since 2×3465640161² = 24021323451072211842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3465640121) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 81190 + ... + 116288.

It is an arithmetic number, because the mean of its divisors is an integer number (137606040).

Almost surely, 2^3465640161 is an apocalyptic number.

It is an amenable number.

3465640161 is a deficient number, since it is larger than the sum of its proper divisors (2038601439).

3465640161 is a wasteful number, since it uses less digits than its factorization.

3465640161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35187 (or 35178 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 3465640161 is about 58869.6879641807. The cubic root of 3465640161 is about 1513.3097235358.

The spelling of 3465640161 in words is "three billion, four hundred sixty-five million, six hundred forty thousand, one hundred sixty-one".