623430401055652 has 6 divisors (see below), whose sum is σ = 1091003201847398. Its totient is φ = 311715200527824.

The previous prime is 623430401055589. The next prime is 623430401055661. The reversal of 623430401055652 is 256550104034326.

It can be written as a sum of positive squares in only one way, i.e., 550586326859776 + 72844074195876 = 23464576^2 + 8534874^2 .

It is a super-2 number, since 2×623430401055652² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77928800131953 + ... + 77928800131960.

Almost surely, 2^{623430401055652} is an apocalyptic number.

It is an amenable number.

623430401055652 is a deficient number, since it is larger than the sum of its proper divisors (467572800791746).

623430401055652 is a wasteful number, since it uses less digits than its factorization.

623430401055652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155857600263917 (or 155857600263915 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 46.

Adding to 623430401055652 its reverse (256550104034326), we get a palindrome (879980505089978).

The spelling of 623430401055652 in words is "six hundred twenty-three trillion, four hundred thirty billion, four hundred one million, fifty-five thousand, six hundred fifty-two".