1406516413646 has 4 divisors (see below), whose sum is σ = 2109774620472. Its totient is φ = 703258206822.

The previous prime is 1406516413619. The next prime is 1406516413649. The reversal of 1406516413646 is 6463146156041.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1406516413646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406516413649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 351629103410 + ... + 351629103413.

It is an arithmetic number, because the mean of its divisors is an integer number (527443655118).

Almost surely, 2^{1406516413646} is an apocalyptic number.

1406516413646 is a deficient number, since it is larger than the sum of its proper divisors (703258206826).

1406516413646 is an equidigital number, since it uses as much as digits as its factorization.

1406516413646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703258206825.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 1406516413646 in words is "one trillion, four hundred six billion, five hundred sixteen million, four hundred thirteen thousand, six hundred forty-six".