11990535006 has 16 divisors (see below), whose sum is σ = 23982157584. Its totient is φ = 3996663744.

The previous prime is 11990534971. The next prime is 11990535019. The reversal of 11990535006 is 60053509911.

11990535006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11990535006² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201016 + ... + 253748.

It is an arithmetic number, because the mean of its divisors is an integer number (1498884849).

Almost surely, 2^11990535006 is an apocalyptic number.

11990535006 is an abundant number, since it is smaller than the sum of its proper divisors (11991622578).

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

11990535006 is a wasteful number, since it uses less digits than its factorization.

11990535006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90635.

The product of its (nonzero) digits is 36450, while the sum is 39.

The spelling of 11990535006 in words is "eleven billion, nine hundred ninety million, five hundred thirty-five thousand, six".