214766990506 has 4 divisors (see below), whose sum is σ = 322150485762. Its totient is φ = 107383495252.

The previous prime is 214766990491. The next prime is 214766990531. The reversal of 214766990506 is 605099667412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 213158579481 + 1608411025 = 461691^2 + 40105^2 .

It is a super-2 number, since 2×214766990506² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53691747625 + ... + 53691747628.

Almost surely, 2^214766990506 is an apocalyptic number.

214766990506 is a deficient number, since it is larger than the sum of its proper divisors (107383495256).

214766990506 is a wasteful number, since it uses less digits than its factorization.

214766990506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107383495255.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 214766990506 in words is "two hundred fourteen billion, seven hundred sixty-six million, nine hundred ninety thousand, five hundred six".