99672167806 has 4 divisors (see below), whose sum is σ = 149508251712. Its totient is φ = 49836083902.

The previous prime is 99672167783. The next prime is 99672167821. The reversal of 99672167806 is 60876127699.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24918041950 + ... + 24918041953.

It is an arithmetic number, because the mean of its divisors is an integer number (37377062928).

Almost surely, 2^99672167806 is an apocalyptic number.

99672167806 is a deficient number, since it is larger than the sum of its proper divisors (49836083906).

99672167806 is a wasteful number, since it uses less digits than its factorization.

99672167806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49836083905.

The product of its (nonzero) digits is 13716864, while the sum is 61.

The spelling of 99672167806 in words is "ninety-nine billion, six hundred seventy-two million, one hundred sixty-seven thousand, eight hundred six".