601690219145 has 4 divisors (see below), whose sum is σ = 722028262980. Its totient is φ = 481352175312.

The previous prime is 601690219129. The next prime is 601690219189. The reversal of 601690219145 is 541912096106.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 442942160521 + 158748058624 = 665539^2 + 398432^2 .

It is a cyclic number.

It is not a de Polignac number, because 601690219145 - 2⁴ = 601690219129 is a prime.

It is a super-2 number, since 2×601690219145² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 601690219096 and 601690219105.

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, 60169021910 + ... + 60169021919.

It is an arithmetic number, because the mean of its divisors is an integer number (180507065745).

Almost surely, 2^601690219145 is an apocalyptic number.

It is an amenable number.

601690219145 is a deficient number, since it is larger than the sum of its proper divisors (120338043835).

601690219145 is a wasteful number, since it uses less digits than its factorization.

601690219145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120338043834.

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 601690219145 in words is "six hundred one billion, six hundred ninety million, two hundred nineteen thousand, one hundred forty-five".