406405157001 has 4 divisors (see below), whose sum is σ = 541873542672. Its totient is φ = 270936771332.

The previous prime is 406405156973. The next prime is 406405157009. The reversal of 406405157001 is 100751504604.

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 a cyclic number.

It is not a de Polignac number, because 406405157001 - 2⁹ = 406405156489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (406405157009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67734192831 + ... + 67734192836.

It is an arithmetic number, because the mean of its divisors is an integer number (135468385668).

Almost surely, 2^406405157001 is an apocalyptic number.

It is an amenable number.

406405157001 is a deficient number, since it is larger than the sum of its proper divisors (135468385671).

406405157001 is a wasteful number, since it uses less digits than its factorization.

406405157001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135468385670.

The product of its (nonzero) digits is 16800, while the sum is 33.

The spelling of 406405157001 in words is "four hundred six billion, four hundred five million, one hundred fifty-seven thousand, one".