12015504346940 has 24 divisors (see below), whose sum is σ = 25233600793632. Its totient is φ = 4806003326400.

The previous prime is 12015504346919. The next prime is 12015504346969. The reversal of 12015504346940 is 4964340551021.

It is a happy number.

It is a super-2 number, since 2×12015504346940² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12015504346891 and 12015504346900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11903711 + ... + 12873590.

It is an arithmetic number, because the mean of its divisors is an integer number (1051400033068).

Almost surely, 2^{12015504346940} is an apocalyptic number.

12015504346940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12015504346940 is an abundant number, since it is smaller than the sum of its proper divisors (13218096446692).

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

12015504346940 is a wasteful number, since it uses less digits than its factorization.

12015504346940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24801557 (or 24801555 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

Adding to 12015504346940 its reverse (4964340551021), we get a palindrome (16979844897961).

The spelling of 12015504346940 in words is "twelve trillion, fifteen billion, five hundred four million, three hundred forty-six thousand, nine hundred forty".