4661146256545 has 8 divisors (see below), whose sum is σ = 5595186266280. Its totient is φ = 3727709832960.

The previous prime is 4661146256531. The next prime is 4661146256573. The reversal of 4661146256545 is 5456526411664.

It can be written as a sum of positive squares in 4 ways, for example, as 797704418449 + 3863441838096 = 893143^2 + 1965564^2 .

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

It is not a de Polignac number, because 4661146256545 - 2⁵ = 4661146256513 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150879546 + ... + 150910435.

It is an arithmetic number, because the mean of its divisors is an integer number (699398283285).

Almost surely, 2^{4661146256545} is an apocalyptic number.

It is an amenable number.

4661146256545 is a deficient number, since it is larger than the sum of its proper divisors (934040009735).

4661146256545 is a wasteful number, since it uses less digits than its factorization.

4661146256545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301793075.

The product of its digits is 20736000, while the sum is 55.

The spelling of 4661146256545 in words is "four trillion, six hundred sixty-one billion, one hundred forty-six million, two hundred fifty-six thousand, five hundred forty-five".