1406654636601 has 4 divisors (see below), whose sum is σ = 1875539515472. Its totient is φ = 937769757732.

The previous prime is 1406654636587. The next prime is 1406654636603. The reversal of 1406654636601 is 1066364566041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1406654636601 - 2¹⁹ = 1406654112313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1406654636603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234442439431 + ... + 234442439436.

It is an arithmetic number, because the mean of its divisors is an integer number (468884878868).

Almost surely, 2^{1406654636601} is an apocalyptic number.

It is an amenable number.

1406654636601 is a deficient number, since it is larger than the sum of its proper divisors (468884878871).

1406654636601 is an equidigital number, since it uses as much as digits as its factorization.

1406654636601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468884878870.

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 1406654636601 in words is "one trillion, four hundred six billion, six hundred fifty-four million, six hundred thirty-six thousand, six hundred one".