999999951191146 has 16 divisors (see below), whose sum is σ = 1522391669709120. Its totient is φ = 492536097408960.

The previous prime is 999999951191089. The next prime is 999999951191147. The reversal of 999999951191146 is 641191159999999.

It is a super-3 number, since 3×999999951191146³ (a number of 46 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (999999951191147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47879595 + ... + 65516833.

It is an arithmetic number, because the mean of its divisors is an integer number (95149479356820).

Almost surely, 2^{999999951191146} is an apocalyptic number.

999999951191146 is a deficient number, since it is larger than the sum of its proper divisors (522391718517974).

999999951191146 is a wasteful number, since it uses less digits than its factorization.

999999951191146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18060429.

The product of its digits is 5165606520, while the sum is 91.

The spelling of 999999951191146 in words is "nine hundred ninety-nine trillion, nine hundred ninety-nine billion, nine hundred fifty-one million, one hundred ninety-one thousand, one hundred forty-six".