145712665105638 has 8 divisors (see below), whose sum is σ = 291425330211288. Its totient is φ = 48570888368544.

The previous prime is 145712665105613. The next prime is 145712665105669. The reversal of 145712665105638 is 836501566217541.

It is a sphenic number, since it is the product of 3 distinct primes.

145712665105638 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12142722092131 + ... + 12142722092142.

It is an arithmetic number, because the mean of its divisors is an integer number (36428166276411).

Almost surely, 2^{145712665105638} is an apocalyptic number.

145712665105638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

145712665105638 is a wasteful number, since it uses less digits than its factorization.

145712665105638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24285444184278.

The product of its (nonzero) digits is 36288000, while the sum is 60.

The spelling of 145712665105638 in words is "one hundred forty-five trillion, seven hundred twelve billion, six hundred sixty-five million, one hundred five thousand, six hundred thirty-eight".