101806440582 has 48 divisors (see below), whose sum is σ = 255778177536. Its totient is φ = 26443230000.

The previous prime is 101806440581. The next prime is 101806440583. The reversal of 101806440582 is 285044608101.

It is an interprime number because it is at equal distance from previous prime (101806440581) and next prime (101806440583).

It is a self number, because there is not a number n which added to its sum of digits gives 101806440582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101806440581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10011294 + ... + 10021457.

It is an arithmetic number, because the mean of its divisors is an integer number (5328712032).

Almost surely, 2^101806440582 is an apocalyptic number.

101806440582 is an abundant number, since it is smaller than the sum of its proper divisors (153971736954).

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

101806440582 is a wasteful number, since it uses less digits than its factorization.

101806440582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20032785 (or 20032774 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 39.

The spelling of 101806440582 in words is "one hundred one billion, eight hundred six million, four hundred forty thousand, five hundred eighty-two".