420020224124552 has 16 divisors (see below), whose sum is σ = 787560369889500. Its totient is φ = 210004125487360.

The previous prime is 420020224124551. The next prime is 420020224124587. The reversal of 420020224124552 is 255421422020024.

It can be written as a sum of positive squares in 2 ways, for example, as 418966287819556 + 1053936304996 = 20468666^2 + 1026614^2 .

It is not an unprimeable number, because it can be changed into a prime (420020224124551) 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, 748023677 + ... + 748584972.

Almost surely, 2^{420020224124552} is an apocalyptic number.

It is an amenable number.

420020224124552 is a deficient number, since it is larger than the sum of its proper divisors (367540145764948).

420020224124552 is a wasteful number, since it uses less digits than its factorization.

420020224124552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496643736 (or 1496643732 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 35.

Adding to 420020224124552 its reverse (255421422020024), we get a palindrome (675441646144576).

The spelling of 420020224124552 in words is "four hundred twenty trillion, twenty billion, two hundred twenty-four million, one hundred twenty-four thousand, five hundred fifty-two".