145204055646 has 32 divisors (see below), whose sum is σ = 331144093728. Its totient is φ = 42050042880.

The previous prime is 145204055641. The next prime is 145204055683. The reversal of 145204055646 is 646550402541.

145204055646 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 145204055598 and 145204055607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145204055641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54751335 + ... + 54753986.

It is an arithmetic number, because the mean of its divisors is an integer number (10348252929).

Almost surely, 2^145204055646 is an apocalyptic number.

145204055646 is an abundant number, since it is smaller than the sum of its proper divisors (185940038082).

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

145204055646 is a wasteful number, since it uses less digits than its factorization.

145204055646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109505356.

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 145204055646 in words is "one hundred forty-five billion, two hundred four million, fifty-five thousand, six hundred forty-six".