1551552046241 has 4 divisors (see below), whose sum is σ = 1551815966400. Its totient is φ = 1551288126084.

The previous prime is 1551552046229. The next prime is 1551552046277. The reversal of 1551552046241 is 1426402551551.

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 1551552046241 - 2³⁴ = 1534372177057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1551552046841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131951261 + ... + 131963018.

It is an arithmetic number, because the mean of its divisors is an integer number (387953991600).

Almost surely, 2^{1551552046241} is an apocalyptic number.

It is an amenable number.

1551552046241 is a deficient number, since it is larger than the sum of its proper divisors (263920159).

1551552046241 is an equidigital number, since it uses as much as digits as its factorization.

1551552046241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263920158.

The product of its (nonzero) digits is 240000, while the sum is 41.

Adding to 1551552046241 its reverse (1426402551551), we get a palindrome (2977954597792).

The spelling of 1551552046241 in words is "one trillion, five hundred fifty-one billion, five hundred fifty-two million, forty-six thousand, two hundred forty-one".