145903446667 has 8 divisors (see below), whose sum is σ = 159170265072. Its totient is φ = 132637106400.

The previous prime is 145903446643. The next prime is 145903446683. The reversal of 145903446667 is 766644309541.

145903446667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 145903446667 - 2⁷ = 145903446539 is a prime.

It is a super-2 number, since 2×145903446667² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145903446617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 887193 + ... + 1038709.

It is an arithmetic number, because the mean of its divisors is an integer number (19896283134).

Almost surely, 2^145903446667 is an apocalyptic number.

145903446667 is a deficient number, since it is larger than the sum of its proper divisors (13266818405).

145903446667 is a wasteful number, since it uses less digits than its factorization.

145903446667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239069.

The product of its (nonzero) digits is 13063680, while the sum is 55.

The spelling of 145903446667 in words is "one hundred forty-five billion, nine hundred three million, four hundred forty-six thousand, six hundred sixty-seven".