73640165467 has 4 divisors (see below), whose sum is σ = 80334725976. Its totient is φ = 66945604960.

The previous prime is 73640165461. The next prime is 73640165471. The reversal of 73640165467 is 76456104637.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76456104637 = 11 ⋅6950554967.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73640165467 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73640165467.

It is not an unprimeable number, because it can be changed into a prime (73640165461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3347280238 + ... + 3347280259.

It is an arithmetic number, because the mean of its divisors is an integer number (20083681494).

Almost surely, 2^73640165467 is an apocalyptic number.

73640165467 is a deficient number, since it is larger than the sum of its proper divisors (6694560509).

73640165467 is a wasteful number, since it uses less digits than its factorization.

73640165467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6694560508.

The product of its (nonzero) digits is 2540160, while the sum is 49.

The spelling of 73640165467 in words is "seventy-three billion, six hundred forty million, one hundred sixty-five thousand, four hundred sixty-seven".