1551006555497 has 8 divisors (see below), whose sum is σ = 1772589533376. Its totient is φ = 1329426230832.

The previous prime is 1551006555493. The next prime is 1551006555499. The reversal of 1551006555497 is 7945556001551.

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

It is not a de Polignac number, because 1551006555497 - 2² = 1551006555493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1551006555493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 806498 + ... + 1937124.

It is an arithmetic number, because the mean of its divisors is an integer number (221573691672).

Almost surely, 2^{1551006555497} is an apocalyptic number.

It is an amenable number.

1551006555497 is a deficient number, since it is larger than the sum of its proper divisors (221582977879).

1551006555497 is a wasteful number, since it uses less digits than its factorization.

1551006555497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326607.

The product of its (nonzero) digits is 4725000, while the sum is 53.

The spelling of 1551006555497 in words is "one trillion, five hundred fifty-one billion, six million, five hundred fifty-five thousand, four hundred ninety-seven".