1672115071212 has 36 divisors (see below), whose sum is σ = 4227931999200. Its totient is φ = 557213886432.

The previous prime is 1672115071183. The next prime is 1672115071217. The reversal of 1672115071212 is 2121705112761.

It is a happy number.

1672115071212 is a `hidden beast` number, since 1 + 6 + 7 + 21 + 1 + 507 + 121 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1672115071212² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1672115071217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6446212 + ... + 6700587.

Almost surely, 2^{1672115071212} is an apocalyptic number.

1672115071212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1672115071212 is an abundant number, since it is smaller than the sum of its proper divisors (2555816927988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1672115071212 is a wasteful number, since it uses less digits than its factorization.

1672115071212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13150342 (or 13150337 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 36.

The spelling of 1672115071212 in words is "one trillion, six hundred seventy-two billion, one hundred fifteen million, seventy-one thousand, two hundred twelve".