451155142352212 has 12 divisors (see below), whose sum is σ = 789524118111456. Its totient is φ = 225576822891800.

The previous prime is 451155142352209. The next prime is 451155142352219. The reversal of 451155142352212 is 212253241551154.

It is a super-2 number, since 2×451155142352212² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451155142352219) 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, 185713414 + ... + 188127037.

It is an arithmetic number, because the mean of its divisors is an integer number (65793676509288).

Almost surely, 2^{451155142352212} is an apocalyptic number.

It is an amenable number.

451155142352212 is a deficient number, since it is larger than the sum of its proper divisors (338368975759244).

451155142352212 is a wasteful number, since it uses less digits than its factorization.

451155142352212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374142158 (or 374142156 counting only the distinct ones).

The product of its digits is 480000, while the sum is 43.

The spelling of 451155142352212 in words is "four hundred fifty-one trillion, one hundred fifty-five billion, one hundred forty-two million, three hundred fifty-two thousand, two hundred twelve".