40161303477212 has 12 divisors (see below), whose sum is σ = 73338032436816. Its totient is φ = 19207579923840.

The previous prime is 40161303477199. The next prime is 40161303477293. The reversal of 40161303477212 is 21277430316104.

It is a super-2 number, since 2×40161303477212² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40161303477212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218267953589 + ... + 218267953772.

It is an arithmetic number, because the mean of its divisors is an integer number (6111502703068).

Almost surely, 2^{40161303477212} is an apocalyptic number.

It is an amenable number.

40161303477212 is a deficient number, since it is larger than the sum of its proper divisors (33176728959604).

40161303477212 is a wasteful number, since it uses less digits than its factorization.

40161303477212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436535907388 (or 436535907386 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 40161303477212 in words is "forty trillion, one hundred sixty-one billion, three hundred three million, four hundred seventy-seven thousand, two hundred twelve".