145062255661 has 8 divisors (see below), whose sum is σ = 145452654648. Its totient is φ = 144672000000.

The previous prime is 145062255649. The next prime is 145062255673. The reversal of 145062255661 is 166552260541.

It is an interprime number because it is at equal distance from previous prime (145062255649) and next prime (145062255673).

It can be written as a sum of positive squares in 4 ways, for example, as 140617500100 + 4444755561 = 374990^2 + 66669^2 .

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 145062255661 - 2⁵ = 145062255629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145062255361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2173021 + ... + 2238781.

It is an arithmetic number, because the mean of its divisors is an integer number (18181581831).

Almost surely, 2^145062255661 is an apocalyptic number.

It is an amenable number.

145062255661 is a deficient number, since it is larger than the sum of its proper divisors (390398987).

145062255661 is an equidigital number, since it uses as much as digits as its factorization.

145062255661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71663.

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 145062255661 in words is "one hundred forty-five billion, sixty-two million, two hundred fifty-five thousand, six hundred sixty-one".