1401573720506 has 16 divisors (see below), whose sum is σ = 2103982732800. Its totient is φ = 700246351728.

The previous prime is 1401573720457. The next prime is 1401573720523. The reversal of 1401573720506 is 6050273751041.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14104511 + ... + 14203533.

It is an arithmetic number, because the mean of its divisors is an integer number (131498920800).

Almost surely, 2^{1401573720506} is an apocalyptic number.

1401573720506 is a deficient number, since it is larger than the sum of its proper divisors (702409012294).

1401573720506 is a wasteful number, since it uses less digits than its factorization.

1401573720506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104413.

The product of its (nonzero) digits is 176400, while the sum is 41.

The spelling of 1401573720506 in words is "one trillion, four hundred one billion, five hundred seventy-three million, seven hundred twenty thousand, five hundred six".