145416505442 has 8 divisors (see below), whose sum is σ = 234903585756. Its totient is φ = 67115310192.

The previous prime is 145416505373. The next prime is 145416505483. The reversal of 145416505442 is 244505614541.

It can be written as a sum of positive squares in 2 ways, for example, as 141594916681 + 3821588761 = 376291^2 + 61819^2 .

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

It is a super-2 number, since 2×145416505442² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145416505442.

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, 2796471233 + ... + 2796471284.

Almost surely, 2^145416505442 is an apocalyptic number.

145416505442 is a deficient number, since it is larger than the sum of its proper divisors (89487080314).

145416505442 is a wasteful number, since it uses less digits than its factorization.

145416505442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5592942532.

The product of its (nonzero) digits is 384000, while the sum is 41.

The spelling of 145416505442 in words is "one hundred forty-five billion, four hundred sixteen million, five hundred five thousand, four hundred forty-two".