4012573202661 has 8 divisors (see below), whose sum is σ = 5351291573184. Its totient is φ = 2674451816960.

The previous prime is 4012573202647. The next prime is 4012573202723. The reversal of 4012573202661 is 1662023752104.

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 4012573202661 - 2⁵ = 4012573202629 is a prime.

It is a super-2 number, since 2×4012573202661² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4012573202761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149230521 + ... + 149257406.

It is an arithmetic number, because the mean of its divisors is an integer number (668911446648).

Almost surely, 2^{4012573202661} is an apocalyptic number.

It is an amenable number.

4012573202661 is a deficient number, since it is larger than the sum of its proper divisors (1338718370523).

4012573202661 is a wasteful number, since it uses less digits than its factorization.

4012573202661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298492411.

The product of its (nonzero) digits is 120960, while the sum is 39.

Adding to 4012573202661 its reverse (1662023752104), we get a palindrome (5674596954765).

The spelling of 4012573202661 in words is "four trillion, twelve billion, five hundred seventy-three million, two hundred two thousand, six hundred sixty-one".