42235906664 has 128 divisors (see below), whose sum is σ = 101528985600. Its totient is φ = 16053396480.

The previous prime is 42235906613. The next prime is 42235906681. The reversal of 42235906664 is 46660953224.

It is a happy number.

42235906664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1131824 + ... + 1168544.

It is an arithmetic number, because the mean of its divisors is an integer number (793195200).

Almost surely, 2^42235906664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42235906664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50764492800).

42235906664 is an abundant number, since it is smaller than the sum of its proper divisors (59293078936).

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

42235906664 is a wasteful number, since it uses less digits than its factorization.

42235906664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36823 (or 36819 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 42235906664 in words is "forty-two billion, two hundred thirty-five million, nine hundred six thousand, six hundred sixty-four".