1206865745401 has 8 divisors (see below), whose sum is σ = 1232636961024. Its totient is φ = 1181098414080.

The previous prime is 1206865745357. The next prime is 1206865745419. The reversal of 1206865745401 is 1045475686021.

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 1206865745401 - 2¹⁷ = 1206865614329 is a prime.

It is a super-2 number, since 2×1206865745401² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1206865745431) 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, 338685 + ... + 1590106.

It is an arithmetic number, because the mean of its divisors is an integer number (154079620128).

Almost surely, 2^{1206865745401} is an apocalyptic number.

It is an amenable number.

1206865745401 is a deficient number, since it is larger than the sum of its proper divisors (25771215623).

1206865745401 is a wasteful number, since it uses less digits than its factorization.

1206865745401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1942151.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 1206865745401 in words is "one trillion, two hundred six billion, eight hundred sixty-five million, seven hundred forty-five thousand, four hundred one".