1551153121010 has 32 divisors (see below), whose sum is σ = 2825784206640. Its totient is φ = 613005539328.

The previous prime is 1551153121009. The next prime is 1551153121013. The reversal of 1551153121010 is 101213511551.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 99580441 + 1551053540569 = 9979^2 + 1245413^2 .

It is not an unprimeable number, because it can be changed into a prime (1551153121013) 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 15 ways as a sum of consecutive naturals, for example, 1839125 + ... + 2546504.

Almost surely, 2^{1551153121010} is an apocalyptic number.

1551153121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1551153121010 is a deficient number, since it is larger than the sum of its proper divisors (1274631085630).

1551153121010 is a wasteful number, since it uses less digits than its factorization.

1551153121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4386062.

The product of its (nonzero) digits is 750, while the sum is 26.

Adding to 1551153121010 its reverse (101213511551), we get a palindrome (1652366632561).

The spelling of 1551153121010 in words is "one trillion, five hundred fifty-one billion, one hundred fifty-three million, one hundred twenty-one thousand, ten".