10821652667 has 16 divisors (see below), whose sum is σ = 12628062720. Its totient is φ = 9082383552.

The previous prime is 10821652661. The next prime is 10821652679. The reversal of 10821652667 is 76625612801.

It is a cyclic number.

It is not a de Polignac number, because 10821652667 - 2⁶ = 10821652603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10821652661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20153 + ... + 148490.

It is an arithmetic number, because the mean of its divisors is an integer number (789253920).

Almost surely, 2^10821652667 is an apocalyptic number.

10821652667 is a deficient number, since it is larger than the sum of its proper divisors (1806410053).

10821652667 is a wasteful number, since it uses less digits than its factorization.

10821652667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168842.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 10821652667 in words is "ten billion, eight hundred twenty-one million, six hundred fifty-two thousand, six hundred sixty-seven".