551601506506 has 8 divisors (see below), whose sum is σ = 827415565920. Its totient is φ = 275796317868.

The previous prime is 551601506483. The next prime is 551601506507. The reversal of 551601506506 is 605605106155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (551601506507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2059996 + ... + 2312311.

It is an arithmetic number, because the mean of its divisors is an integer number (103426945740).

Almost surely, 2^551601506506 is an apocalyptic number.

551601506506 is a deficient number, since it is larger than the sum of its proper divisors (275814059414).

551601506506 is a wasteful number, since it uses less digits than its factorization.

551601506506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4435388.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 551601506506 in words is "five hundred fifty-one billion, six hundred one million, five hundred six thousand, five hundred six".