1551554553045 has 32 divisors (see below), whose sum is σ = 3004018230528. Its totient is φ = 667559605248.

The previous prime is 1551554553037. The next prime is 1551554553061. The reversal of 1551554553045 is 5403554551551.

It is not a de Polignac number, because 1551554553045 - 2³ = 1551554553037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1551554552985 and 1551554553003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 434607334 + ... + 434610903.

It is an arithmetic number, because the mean of its divisors is an integer number (93875569704).

Almost surely, 2^{1551554553045} is an apocalyptic number.

1551554553045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1551554553045 is a deficient number, since it is larger than the sum of its proper divisors (1452463677483).

1551554553045 is a wasteful number, since it uses less digits than its factorization.

1551554553045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869218269.

The product of its (nonzero) digits is 3750000, while the sum is 48.

The spelling of 1551554553045 in words is "one trillion, five hundred fifty-one billion, five hundred fifty-four million, five hundred fifty-three thousand, forty-five".