145423442004432 has 40 divisors (see below), whose sum is σ = 380203456817184. Its totient is φ = 47890450779264.

The previous prime is 145423442004431. The next prime is 145423442004443. The reversal of 145423442004432 is 234400244324541.

It is a super-2 number, since 2×145423442004432² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145423442004431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18250930003 + ... + 18250937970.

Almost surely, 2^{145423442004432} is an apocalyptic number.

145423442004432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145423442004432 is an abundant number, since it is smaller than the sum of its proper divisors (234780014812752).

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

145423442004432 is a wasteful number, since it uses less digits than its factorization.

145423442004432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36501868067 (or 36501868061 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 42.

Adding to 145423442004432 its reverse (234400244324541), we get a palindrome (379823686328973).

The spelling of 145423442004432 in words is "one hundred forty-five trillion, four hundred twenty-three billion, four hundred forty-two million, four thousand, four hundred thirty-two".