1551030342420 has 96 divisors (see below), whose sum is σ = 4703081685120. Its totient is φ = 379659133440.

The previous prime is 1551030342403. The next prime is 1551030342469. The reversal of 1551030342420 is 242430301551.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5414851 + ... + 5694090.

It is an arithmetic number, because the mean of its divisors is an integer number (48990434220).

Almost surely, 2^{1551030342420} is an apocalyptic number.

1551030342420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1551030342420 is an abundant number, since it is smaller than the sum of its proper divisors (3152051342700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1551030342420 is a wasteful number, since it uses less digits than its factorization.

1551030342420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11109145 (or 11109143 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 1551030342420 its reverse (242430301551), we get a palindrome (1793460643971).

The spelling of 1551030342420 in words is "one trillion, five hundred fifty-one billion, thirty million, three hundred forty-two thousand, four hundred twenty".