12662217435 has 32 divisors (see below), whose sum is σ = 23533350912. Its totient is φ = 5693546880.

The previous prime is 12662217433. The next prime is 12662217487. The reversal of 12662217435 is 53471226621.

It is not a de Polignac number, because 12662217435 - 2¹ = 12662217433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12662217393 and 12662217402.

It is not an unprimeable number, because it can be changed into a prime (12662217433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 982059 + ... + 994868.

It is an arithmetic number, because the mean of its divisors is an integer number (735417216).

Almost surely, 2^12662217435 is an apocalyptic number.

12662217435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12662217435 is a deficient number, since it is larger than the sum of its proper divisors (10871133477).

12662217435 is a wasteful number, since it uses less digits than its factorization.

12662217435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977003.

The product of its digits is 120960, while the sum is 39.

The spelling of 12662217435 in words is "twelve billion, six hundred sixty-two million, two hundred seventeen thousand, four hundred thirty-five".